| 1 | O Holy Night | English Wikipedia | 17,734 | 5 | 433 |
| 2 | O'Shea Jackson Jr. | English Wikipedia | 14,998 | 10 | 526 |
| 3 | O. J. Simpson | English Wikipedia | 2,368,368 | 462 | 3 |
| 4 | O. J. Simpson | French Wikipedia | 9,740 | 6 | 41 |
| 5 | O. J. Simpson | Spanish Wikipedia | 14,945 | 5 | 19 |
| 6 | O. J. Simpson murder case | English Wikipedia | 407,487 | 31 | 7 |
| 7 | O.G. Anunoby | English Wikipedia | 65,153 | 6 | 49 |
| 8 | Oak Hill Country Club | English Wikipedia | 27,197 | 7 | 184 |
| 9 | Oakland Athletics | English Wikipedia | 92,526 | 21 | 24 |
| 10 | Oakmont Country Club | English Wikipedia | 47,322 | 8 | 75 |
| 11 | Oarfish | English Wikipedia | 51,955 | 34 | 61 |
| 12 | Oasis | English Wikipedia | 515,296 | 111 | 4 |
| 13 | Oasis discography | English Wikipedia | 35,433 | 9 | 83 |
| 14 | Oasis Live '25 Tour | English Wikipedia | 83,074 | 68 | 39 |
| 15 | Oath Keepers | English Wikipedia | 26,725 | 5 | 177 |
| 16 | Oba Femi | English Wikipedia | 20,612 | 6 | 353 |
| 17 | Obelisk (biology) | English Wikipedia | 83,166 | 5 | 27 |
| 18 | Obergefell v. Hodges | English Wikipedia | 42,493 | 8 | 91 |
| 19 | Obi Toppin | English Wikipedia | 44,093 | 18 | 84 |
| 20 | Obliterated | English Wikipedia | 36,720 | 16 | 134 |
| 21 | Obsession (2023 TV series) | English Wikipedia | 52,701 | 14 | 49 |
| 22 | Obsidian Entertainment | English Wikipedia | 17,275 | 7 | 362 |
| 23 | Ocean Ramsey | English Wikipedia | 34,497 | 9 | 104 |
| 24 | Ocean Vuong | English Wikipedia | 15,834 | 9 | 310 |
| 25 | OceanGate, Inc. | English Wikipedia | 571,387 | 41 | 5 |
| 26 | OceanGate, Inc. | English Wikipedia | 205,108 | 6 | 13 |
| 27 | Octavio Dotel | English Wikipedia | 141,118 | 5 | 13 |
| 28 | October 1 | English Wikipedia | 37,308 | 6 | 109 |
| 29 | October 1978 papal conclave | English Wikipedia | 42,836 | 6 | 159 |
| 30 | October 2023 Gaza−Israel conflict | English Wikipedia | 874,174 | 9 | 4 |
| 31 | October 2023 Israeli blockade of the Gaza Strip | English Wikipedia | 38,332 | 7 | 136 |
| 32 | October 2023 Speaker of the United States House of Representatives election | English Wikipedia | 92,015 | 20 | 27 |
| 33 | October 2024 Iranian strikes against Israel | English Wikipedia | 128,783 | 9 | 23 |
| 34 | October 2024 Spain floods | English Wikipedia | 55,671 | 7 | 64 |
| 35 | October 7 attacks | English Wikipedia | 18,146 | 38 | 287 |
| 36 | Oda Nobunaga | English Wikipedia | 27,770 | 16 | 137 |
| 37 | Odd Thomas (film) | English Wikipedia | 16,648 | 8 | 240 |
| 38 | Oddity (film) | English Wikipedia | 24,929 | 27 | 189 |
| 39 | Odela 2 | English Wikipedia | 36,707 | 15 | 121 |
| 40 | Odela Railway Station | English Wikipedia | 24,997 | 12 | 229 |
| 41 | Odell Beckham Jr. | English Wikipedia | 69,619 | 62 | 89 |
| 42 | Odisha | English Wikipedia | 53,538 | 6 | 53 |
| 43 | Odisha Legislative Assembly | English Wikipedia | 51,237 | 5 | 102 |
| 44 | Odum Kuthira Chaadum Kuthira | English Wikipedia | 28,721 | 9 | 145 |
| 45 | Odysseus | English Wikipedia | 20,890 | 7 | 301 |
| 46 | Odyssey | English Wikipedia | 134,144 | 38 | 12 |
| 47 | Officer on Duty | English Wikipedia | 70,507 | 27 | 41 |
| 48 | Offset (rapper) | English Wikipedia | 28,855 | 13 | 174 |
| 49 | Offside (association football) | English Wikipedia | 14,771 | 5 | 521 |
| 50 | OG | English Wikipedia | 185,945 | 9 | 9 |
| 51 | OG (2025 film) | English Wikipedia | 134,454 | 15 | 10 |
| 52 | OG Anunoby | English Wikipedia | 28,168 | 17 | 137 |
| 53 | Ohio | English Wikipedia | 24,179 | 16 | 249 |
| 54 | Ohio State Buckeyes football | English Wikipedia | 107,457 | 12 | 52 |
| 55 | Ohio State University abuse scandal | English Wikipedia | 21,462 | 5 | 208 |
| 56 | Ohio-class submarine | English Wikipedia | 47,650 | 5 | 77 |
| 57 | Oho Enthan Baby | English Wikipedia | 16,131 | 8 | 265 |
| 58 | Oklahoma City bombing | English Wikipedia | 155,971 | 52 | 10 |
| 59 | Oklahoma City Thunder | English Wikipedia | 251,753 | 34 | 8 |
| 60 | Oktoberfest | English Wikipedia | 15,256 | 17 | 427 |
| 61 | Oktoberfest | German Wikipedia | 10,423 | 4 | 30 |
| 62 | Ol Parker | English Wikipedia | 38,072 | 7 | 164 |
| 63 | OL Reign | English Wikipedia | 36,954 | 5 | 137 |
| 64 | Ol' Dirty Bastard | English Wikipedia | 15,925 | 7 | 348 |
| 65 | Olaf Scholz | English Wikipedia | 68,249 | 14 | 55 |
| 66 | Olaf Scholz | German Wikipedia | 9,328 | 11 | 82 |
| 67 | Old (film) | English Wikipedia | 27,390 | 41 | 180 |
| 68 | Old Dads | English Wikipedia | 59,061 | 21 | 59 |
| 69 | Oldboy (2003 film) | English Wikipedia | 11,658 | 7 | 711 |
| 70 | Oldest people | English Wikipedia | 19,509 | 8 | 329 |
| 71 | Ole Gunnar Solskjær | English Wikipedia | 35,236 | 12 | 114 |
| 72 | Ole Romeny | English Wikipedia | 24,691 | 5 | 204 |
| 73 | Oleksandr Usyk | English Wikipedia | 513,731 | 116 | 3 |
| 74 | Oleksandr Zinchenko (footballer) | English Wikipedia | 33,323 | 7 | 109 |
| 75 | Olena Zelenska | English Wikipedia | 62,895 | 8 | 57 |
| 76 | Olga Carmona | English Wikipedia | 119,995 | 5 | 32 |
| 77 | Olga Danilović | English Wikipedia | 36,353 | 5 | 140 |
| 78 | Olga Korbut | English Wikipedia | 49,488 | 15 | 118 |
| 79 | Olga Kurylenko | English Wikipedia | 49,785 | 40 | 71 |
| 80 | Oligarchy | English Wikipedia | 133,656 | 15 | 16 |
| 81 | Oliver Anthony | English Wikipedia | 47,133 | 26 | 78 |
| 82 | Oliver Bearman | English Wikipedia | 215,647 | 26 | 10 |
| 83 | Oliver Cromwell | English Wikipedia | 33,828 | 35 | 227 |
| 84 | Oliver Dowden | English Wikipedia | 44,598 | 5 | 62 |
| 85 | Oliver Glasner | English Wikipedia | 92,622 | 25 | 27 |
| 86 | Oliver Haarmann | English Wikipedia | 45,951 | 5 | 49 |
| 87 | Oliver Hudson | English Wikipedia | 30,763 | 18 | 177 |
| 88 | Oliver Jackson-Cohen | English Wikipedia | 19,496 | 9 | 351 |
| 89 | Oliver Reed | English Wikipedia | 97,546 | 52 | 37 |
| 90 | Oliver Stark | English Wikipedia | 21,848 | 5 | 223 |
| 91 | Olivia Charlotte Guinness, Baroness Ardilaun | English Wikipedia | 23,685 | 7 | 229 |
| 92 | Olivia Colman | English Wikipedia | 24,961 | 64 | 157 |
| 93 | Olivia Cooke | English Wikipedia | 48,244 | 69 | 79 |
| 94 | Olivia Culpo | English Wikipedia | 134,799 | 56 | 41 |
| 95 | Olivia Dean | English Wikipedia | 39,561 | 10 | 158 |
| 96 | Olivia Dunne | English Wikipedia | 45,694 | 17 | 97 |
| 97 | Olivia Hussey | English Wikipedia | 577,151 | 19 | 4 |
| 98 | Olivia Munn | English Wikipedia | 167,956 | 176 | 10 |
| 99 | Olivia Newton-John | English Wikipedia | 90,785 | 47 | 29 |
| 100 | Olivia Nuzzi | English Wikipedia | 182,750 | 7 | 7 |
| 101 | Olivia Olson | English Wikipedia | 17,880 | 5 | 544 |
| 102 | Olivia Rodrigo | English Wikipedia | 232,350 | 521 | 14 |
| 103 | Olivia Rodrigo | Spanish Wikipedia | 5,462 | 3 | 92 |
| 104 | Olivia Ruiz | French Wikipedia | 6,213 | 3 | 91 |
| 105 | Olivia Thirlby | English Wikipedia | 137,329 | 16 | 17 |
| 106 | Olivia Wilde | English Wikipedia | 42,120 | 205 | 133 |
| 107 | Olivier de Sagazan | French Wikipedia | 9,727 | 3 | 32 |
| 108 | Olivier Dussopt | French Wikipedia | 14,707 | 4 | 20 |
| 109 | Olivier Faure (homme politique) | French Wikipedia | 8,992 | 4 | 56 |
| 110 | Olivier Giroud | English Wikipedia | 54,658 | 36 | 67 |
| 111 | Olivier Giroud | French Wikipedia | 17,790 | 9 | 12 |
| 112 | Olivier Martinez | English Wikipedia | 27,297 | 9 | 208 |
| 113 | Olivier Richters | English Wikipedia | 40,643 | 37 | 100 |
| 114 | Olivier Rioux | English Wikipedia | 44,670 | 11 | 83 |
| 115 | Ollie Pope | English Wikipedia | 36,583 | 5 | 180 |
| 116 | Ollie Watkins | English Wikipedia | 445,533 | 25 | 5 |
| 117 | Olly Alexander | English Wikipedia | 130,231 | 14 | 21 |
| 118 | OLY | English Wikipedia | 32,894 | 18 | 261 |
| 119 | Olympiacos F.C. | English Wikipedia | 73,761 | 10 | 21 |
| 120 | Olympic flame | English Wikipedia | 53,536 | 5 | 87 |
| 121 | Olympic Games | English Wikipedia | 263,078 | 41 | 9 |
| 122 | Olympic medal table | English Wikipedia | 17,115 | 7 | 566 |
| 123 | Olympic sports | English Wikipedia | 18,827 | 18 | 498 |
| 124 | Olympic symbols | English Wikipedia | 36,020 | 12 | 197 |
| 125 | Olympic weightlifting | English Wikipedia | 20,917 | 5 | 399 |
| 126 | Olympic-class ocean liner | English Wikipedia | 19,811 | 5 | 377 |
| 127 | Olympique de Marseille | French Wikipedia | 16,329 | 7 | 43 |
| 128 | Olympique de Marseille | English Wikipedia | 14,868 | 5 | 469 |
| 129 | Olympique Lyonnais | English Wikipedia | 37,163 | 8 | 90 |
| 130 | Olympische Sommerspiele 2024 | German Wikipedia | 42,377 | 3 | 11 |
| 131 | Om Birla | English Wikipedia | 83,804 | 7 | 25 |
| 132 | Om Raut | English Wikipedia | 123,096 | 18 | 21 |
| 133 | Omaha Beach | English Wikipedia | 45,476 | 6 | 75 |
| 134 | Oman | English Wikipedia | 26,711 | 19 | 170 |
| 135 | Omar Abdullah | English Wikipedia | 72,158 | 13 | 34 |
| 136 | Omar al-Bashir | English Wikipedia | 17,079 | 8 | 425 |
| 137 | Omar Benson Miller | English Wikipedia | 23,895 | 20 | 219 |
| 138 | Omar bin Laden | English Wikipedia | 16,988 | 9 | 295 |
| 139 | Omar Fateh | English Wikipedia | 38,878 | 8 | 70 |
| 140 | Omar Fayed | English Wikipedia | 49,189 | 16 | 93 |
| 141 | Omar Marmoush | English Wikipedia | 151,704 | 41 | 11 |
| 142 | Omar Sy | English Wikipedia | 17,562 | 10 | 475 |
| 143 | Omari Hardwick | English Wikipedia | 24,083 | 6 | 281 |
| 144 | Omari Hutchinson | English Wikipedia | 57,137 | 12 | 63 |
| 145 | Omayra Sánchez | English Wikipedia | 103,789 | 8 | 29 |
| 146 | Omegle | English Wikipedia | 234,520 | 311 | 7 |
| 147 | Omegle | Spanish Wikipedia | 5,557 | 3 | 85 |
| 148 | OMG 2 – Oh My God! 2 | English Wikipedia | 226,299 | 79 | 8 |
| 149 | OMG – Oh My God! | English Wikipedia | 20,008 | 11 | 344 |
| 150 | Omid Scobie | English Wikipedia | 96,253 | 10 | 25 |
| 151 | Omni-Man | English Wikipedia | 19,997 | 31 | 322 |
| 152 | Omos | English Wikipedia | 44,396 | 9 | 95 |
| 153 | On Call (TV series) | English Wikipedia | 24,173 | 8 | 256 |
| 154 | On Swift Horses | English Wikipedia | 23,997 | 5 | 210 |
| 155 | On the Road | English Wikipedia | 27,667 | 10 | 155 |
| 156 | Onam | English Wikipedia | 124,144 | 20 | 15 |
| 157 | Once Upon a Studio | English Wikipedia | 46,948 | 5 | 87 |
| 158 | Once Upon a Time in Hollywood | English Wikipedia | 67,575 | 248 | 93 |
| 159 | One Battle After Another | English Wikipedia | 312,969 | 63 | 4 |
| 160 | One Big Beautiful Bill Act | English Wikipedia | 226,680 | 42 | 8 |
| 161 | One Day (2011 film) | English Wikipedia | 62,705 | 39 | 61 |
| 162 | One Day (novel) | English Wikipedia | 52,329 | 25 | 84 |
| 163 | One Day (TV series) | English Wikipedia | 100,487 | 56 | 27 |
| 164 | One Day International | English Wikipedia | 23,767 | 6 | 381 |
| 165 | One Direction | English Wikipedia | 863,024 | 57 | 5 |
| 166 | One Hundred Years of Solitude | English Wikipedia | 51,811 | 38 | 68 |
| 167 | One Hundred Years of Solitude (TV series) | English Wikipedia | 20,057 | 13 | 276 |
| 168 | One Life (2023 film) | English Wikipedia | 18,004 | 15 | 379 |
| 169 | One More Time... | English Wikipedia | 44,065 | 11 | 99 |
| 170 | One Nation, One Election | English Wikipedia | 41,818 | 7 | 72 |
| 171 | One of Them Days | English Wikipedia | 57,044 | 52 | 76 |
| 172 | One Piece | English Wikipedia | 116,606 | 194 | 23 |
| 173 | One Piece | English Wikipedia | 204,961 | 65 | 5 |
| 174 | One Piece | Spanish Wikipedia | 18,969 | 3 | 15 |
| 175 | One Piece | German Wikipedia | 13,781 | 3 | 30 |
| 176 | One Piece | French Wikipedia | 15,746 | 3 | 18 |
| 177 | One Piece (season 20) | English Wikipedia | 16,159 | 8 | 537 |
| 178 | One Piece (TV series) | English Wikipedia | 38,487 | 30 | 128 |
| 179 | One World Trade Center | English Wikipedia | 37,020 | 13 | 145 |
| 180 | One-shot film | English Wikipedia | 14,995 | 8 | 491 |
| 181 | Ong Beng Seng | English Wikipedia | 49,306 | 5 | 82 |
| 182 | Onimusha | English Wikipedia | 45,376 | 5 | 94 |
| 183 | Online Safety Act 2023 | English Wikipedia | 17,615 | 8 | 321 |
| 184 | Only Murders in the Building | English Wikipedia | 74,279 | 255 | 30 |
| 185 | Only Murders in the Building season 4 | English Wikipedia | 20,784 | 7 | 258 |
| 186 | Only Murders in the Building season 5 | English Wikipedia | 16,916 | 23 | 371 |
| 187 | Only the Brave (2017 film) | English Wikipedia | 19,116 | 5 | 357 |
| 188 | OnlyFans | English Wikipedia | 33,656 | 805 | 86 |
| 189 | OnlyFans | Spanish Wikipedia | 8,906 | 24 | 45 |
| 190 | Ons Jabeur | English Wikipedia | 410,997 | 30 | 4 |
| 191 | Ons Jabeur | French Wikipedia | 74,664 | 4 | 4 |
| 192 | Onslaught (Marvel Comics) | English Wikipedia | 31,572 | 6 | 135 |
| 193 | Onyx Storm | English Wikipedia | 112,800 | 16 | 26 |
| 194 | Oommen Chandy | English Wikipedia | 254,143 | 6 | 5 |
| 195 | Oona Chaplin | English Wikipedia | 26,590 | 12 | 252 |
| 196 | Ooru Peru Bhairavakona | English Wikipedia | 28,110 | 5 | 197 |
| 197 | Open Era tennis records – Men's singles | English Wikipedia | 85,147 | 46 | 38 |
| 198 | Open Era tennis records – men's singles | English Wikipedia | 53,526 | 26 | 91 |
| 199 | OpenAI | English Wikipedia | 141,430 | 526 | 30 |
| 200 | Operación Triunfo (España) | Spanish Wikipedia | 5,581 | 3 | 66 |
| 201 | Operación Triunfo 2023 | Spanish Wikipedia | 11,454 | 3 | 38 |
| 202 | Operating system | English Wikipedia | 12,280 | 7 | 656 |
| 203 | Operation 1027 | English Wikipedia | 28,145 | 5 | 175 |
| 204 | Operation Al-Aqsa Flood | English Wikipedia | 46,063 | 11 | 84 |
| 205 | Operation Blue Star | English Wikipedia | 17,735 | 8 | 308 |
| 206 | Operation Dawn of Freedom | English Wikipedia | 30,963 | 9 | 146 |
| 207 | Operation Fortune: Ruse de Guerre | English Wikipedia | 22,530 | 25 | 221 |
| 208 | Operation Mincemeat | English Wikipedia | 22,727 | 9 | 232 |
| 209 | Operation Overlord | English Wikipedia | 75,847 | 8 | 31 |
| 210 | Operation Plumbbob | English Wikipedia | 44,611 | 5 | 129 |
| 211 | Operation Popeye | English Wikipedia | 31,343 | 6 | 166 |
| 212 | Operation Postmaster | English Wikipedia | 47,673 | 42 | 113 |
| 213 | Operation Praying Mantis | English Wikipedia | 148,440 | 9 | 10 |
| 214 | Operation Prosperity Guardian | English Wikipedia | 42,203 | 9 | 101 |
| 215 | Operation Red Wings | English Wikipedia | 16,112 | 6 | 478 |
| 216 | Operation Rising Lion | English Wikipedia | 350,019 | 10 | 5 |
| 217 | Operation Sindoor | English Wikipedia | 41,461 | 5 | 109 |
| 218 | Operation Spider's Web | English Wikipedia | 91,674 | 9 | 24 |
| 219 | Operation Underground Railroad | English Wikipedia | 26,268 | 17 | 232 |
| 220 | Operation Valentine (film) | English Wikipedia | 26,258 | 10 | 182 |
| 221 | Operation Wetback | English Wikipedia | 22,240 | 7 | 249 |
| 222 | Ophélia Kolb | French Wikipedia | 11,695 | 6 | 32 |
| 223 | Opinion polling for the 2023 New Zealand general election | English Wikipedia | 26,858 | 5 | 203 |
| 224 | Opinion polling for the 2023 Polish parliamentary election | English Wikipedia | 39,417 | 9 | 163 |
| 225 | Opinion polling for the 2023 Turkish presidential election | English Wikipedia | 105,622 | 24 | 34 |
| 226 | Opinion polling for the 2024 French legislative election | English Wikipedia | 32,938 | 28 | 164 |
| 227 | Opinion polling for the 2024 Indian general election | English Wikipedia | 26,528 | 69 | 170 |
| 228 | Opinion polling for the 2024 United Kingdom general election | English Wikipedia | 120,733 | 45 | 15 |
| 229 | Opinion polling for the 2025 Australian federal election | English Wikipedia | 39,377 | 38 | 73 |
| 230 | Opinion polling for the 2025 Canadian federal election | English Wikipedia | 105,722 | 102 | 18 |
| 231 | Opinion polling for the 2025 German federal election | English Wikipedia | 123,658 | 53 | 29 |
| 232 | Opinion polling for the 2025 Polish presidential election | English Wikipedia | 32,993 | 17 | 151 |
| 233 | Opinion polling for the next United Kingdom general election | English Wikipedia | 34,946 | 569 | 103 |
| 234 | Oppenheimer | English Wikipedia | 1,362,922 | 796 | 2 |
| 235 | Oppenheimer (2023) | German Wikipedia | 47,178 | 16 | 5 |
| 236 | Oppenheimer (film) | French Wikipedia | 21,901 | 8 | 13 |
| 237 | Oppenheimer (película) | Spanish Wikipedia | 40,702 | 12 | 9 |
| 238 | Oppenheimer security hearing | English Wikipedia | 79,019 | 32 | 50 |
| 239 | Oprah Winfrey | English Wikipedia | 128,678 | 43 | 19 |
| 240 | Optimus (robot) | English Wikipedia | 24,523 | 7 | 213 |
| 241 | Opus (film) | English Wikipedia | 26,452 | 24 | 197 |
| 242 | Oracle Corporation | English Wikipedia | 87,125 | 24 | 37 |
| 243 | Oral Roberts University | English Wikipedia | 18,267 | 5 | 370 |
| 244 | Orbital (novel) | English Wikipedia | 27,682 | 7 | 233 |
| 245 | Orca | English Wikipedia | 18,016 | 27 | 237 |
| 246 | Order of Nine Angles | English Wikipedia | 56,419 | 9 | 48 |
| 247 | Order of St. Augustine | English Wikipedia | 381,078 | 7 | 10 |
| 248 | Order of the British Empire | English Wikipedia | 33,840 | 15 | 143 |
| 249 | Ordinary Angels (film) | English Wikipedia | 15,302 | 10 | 497 |
| 250 | Ordinary People | English Wikipedia | 52,544 | 8 | 70 |
| 251 | Ordre national de la Légion d'honneur | French Wikipedia | 6,579 | 4 | 83 |
| 252 | Oregon Ducks football | English Wikipedia | 16,256 | 5 | 520 |
| 253 | Oreshnik | English Wikipedia | 114,991 | 18 | 18 |
| 254 | Origin (film) | English Wikipedia | 34,737 | 26 | 203 |
| 255 | Oriol Romeu | English Wikipedia | 62,815 | 12 | 39 |
| 256 | Orion and the Dark | English Wikipedia | 34,364 | 12 | 138 |
| 257 | Orlando Anderson | English Wikipedia | 135,562 | 13 | 17 |
| 258 | Orlando Bloom | English Wikipedia | 75,769 | 204 | 31 |
| 259 | Orlando Brown (actor) | English Wikipedia | 16,222 | 7 | 481 |
| 260 | Orphan (2009 film) | English Wikipedia | 21,729 | 11 | 257 |
| 261 | Orpheus | English Wikipedia | 50,554 | 33 | 57 |
| 262 | Orpheus and Eurydice | English Wikipedia | 18,812 | 11 | 305 |
| 263 | Orquesta Filarmónica de Viena | Spanish Wikipedia | 4,268 | 3 | 149 |
| 264 | Orson Welles | English Wikipedia | 16,951 | 6 | 354 |
| 265 | Orthodox stance | English Wikipedia | 56,886 | 5 | 93 |
| 266 | Orville Peck | English Wikipedia | 81,954 | 16 | 18 |
| 267 | Osage Indian murders | English Wikipedia | 91,141 | 79 | 38 |
| 268 | Osage Nation | English Wikipedia | 43,045 | 39 | 98 |
| 269 | Osama bin Laden | English Wikipedia | 87,727 | 401 | 30 |
| 270 | Osama bin Laden | Spanish Wikipedia | 8,066 | 3 | 43 |
| 271 | Osama Vinladen | English Wikipedia | 90,623 | 6 | 18 |
| 272 | Oscar Bobb | English Wikipedia | 94,876 | 10 | 45 |
| 273 | Oscar De La Hoya | English Wikipedia | 41,984 | 29 | 90 |
| 274 | Oscar Isaac | English Wikipedia | 29,207 | 48 | 203 |
| 275 | Oscar Piastri | English Wikipedia | 103,444 | 101 | 22 |
| 276 | Oscar Piastri | Spanish Wikipedia | 19,307 | 3 | 14 |
| 277 | Oscar Pistorius | English Wikipedia | 169,514 | 22 | 16 |
| 278 | Oscar Ustari | Spanish Wikipedia | 117,597 | 3 | 2 |
| 279 | Oscar Wilde | English Wikipedia | 35,221 | 12 | 124 |
| 280 | Oscarverleihung 2023 | German Wikipedia | 14,071 | 3 | 23 |
| 281 | Oshi no Ko | English Wikipedia | 117,371 | 93 | 15 |
| 282 | OSIRIS-REx | English Wikipedia | 1,931,435 | 6 | 2 |
| 283 | Oskar Lafontaine | German Wikipedia | 22,909 | 4 | 11 |
| 284 | Oskar Schindler | English Wikipedia | 26,060 | 27 | 295 |
| 285 | Oslo Accords | English Wikipedia | 34,285 | 24 | 165 |
| 286 | Osmanoğlu family | English Wikipedia | 29,262 | 7 | 106 |
| 287 | Osteo-odonto-keratoprosthesis | English Wikipedia | 69,673 | 6 | 29 |
| 288 | Oswald Mosley | English Wikipedia | 12,687 | 5 | 649 |
| 289 | Otfried Preußler | German Wikipedia | 7,762 | 3 | 107 |
| 290 | Oti Mabuse | English Wikipedia | 38,956 | 22 | 93 |
| 291 | Otis Williams | English Wikipedia | 32,091 | 5 | 119 |
| 292 | Otmar Szafnauer | English Wikipedia | 20,201 | 12 | 353 |
| 293 | Otto Frank | English Wikipedia | 16,083 | 7 | 448 |
| 294 | Otto Skorzeny | English Wikipedia | 45,937 | 7 | 51 |
| 295 | Otto Waalkes | German Wikipedia | 6,752 | 3 | 69 |
| 296 | Otto Wallin | English Wikipedia | 120,086 | 8 | 21 |
| 297 | Otto Warmbier | English Wikipedia | 49,989 | 19 | 40 |
| 298 | Ottoman Empire | English Wikipedia | 62,321 | 970 | 68 |
| 299 | Our Flag Means Death | English Wikipedia | 25,444 | 30 | 178 |
| 300 | Our Lady of Fátima | English Wikipedia | 19,617 | 5 | 278 |
| 301 | Our Lady of Guadalupe | English Wikipedia | 73,082 | 9 | 28 |
| 302 | Our Little Secret (film) | English Wikipedia | 42,898 | 21 | 83 |
| 303 | Our Unwritten Seoul | English Wikipedia | 14,361 | 10 | 470 |
| 304 | Ousmane Dembélé | English Wikipedia | 281,342 | 51 | 8 |
| 305 | Ousmane Dembélé | French Wikipedia | 73,686 | 12 | 12 |
| 306 | Ousmane Dembélé | Spanish Wikipedia | 21,384 | 3 | 15 |
| 307 | Out of Africa (film) | English Wikipedia | 38,930 | 8 | 103 |
| 308 | Outer Banks (TV series) | English Wikipedia | 78,897 | 76 | 30 |
| 309 | Outer Range | English Wikipedia | 37,016 | 23 | 93 |
| 310 | Outlander (TV series) | English Wikipedia | 23,944 | 130 | 206 |
| 311 | Outlander: Blood of My Blood | English Wikipedia | 44,029 | 27 | 49 |
| 312 | Outlaws Motorcycle Club | English Wikipedia | 11,954 | 5 | 689 |
| 313 | Outlook (correo web) | Spanish Wikipedia | 5,972 | 8 | 93 |
| 314 | Outlook.com | English Wikipedia | 357,704 | 173 | 5 |
| 315 | Outlook.com | French Wikipedia | 54,509 | 3 | 6 |
| 316 | Outnumbered (British TV series) | English Wikipedia | 30,349 | 5 | 189 |
| 317 | Outreau case | English Wikipedia | 38,315 | 8 | 115 |
| 318 | Outside (2024 film) | English Wikipedia | 37,776 | 10 | 87 |
| 319 | Over the Garden Wall | English Wikipedia | 13,521 | 5 | 572 |
| 320 | Overcompensating (TV series) | English Wikipedia | 43,158 | 28 | 82 |
| 321 | Ovidio Guzmán López | English Wikipedia | 135,464 | 10 | 15 |
| 322 | OVO Sound | English Wikipedia | 31,033 | 7 | 179 |
| 323 | Owen Cooper (actor) | English Wikipedia | 333,017 | 42 | 9 |
| 324 | Owen Farrell | English Wikipedia | 77,532 | 18 | 47 |
| 325 | Owen Gray | English Wikipedia | 44,307 | 5 | 84 |
| 326 | Owen Hart | English Wikipedia | 28,177 | 22 | 142 |
| 327 | Owen Teague | English Wikipedia | 29,726 | 15 | 163 |
| 328 | Owen Wilson | English Wikipedia | 43,117 | 100 | 88 |
| 329 | Oxford High School shooting | English Wikipedia | 91,579 | 8 | 31 |
| 330 | Oxycodone | English Wikipedia | 46,574 | 29 | 98 |
| 331 | Oxygen | English Wikipedia | 18,092 | 5 | 315 |
| 332 | Oz Perkins | English Wikipedia | 37,385 | 26 | 103 |
| 333 | Oz the Great and Powerful | English Wikipedia | 31,809 | 13 | 144 |
| 334 | Ozon | Russian Wikipedia | 28,067 | 35 | 12 |
| 335 | Ozymandias (Breaking Bad) | English Wikipedia | 24,462 | 5 | 203 |
| 336 | Ozzmosis | English Wikipedia | 36,501 | 7 | 115 |
| 337 | Ozzy Osbourne | English Wikipedia | 4,190,815 | 299 | 2 |
| 338 | Ozzy Osbourne | Spanish Wikipedia | 23,303 | 4 | 4 |
| 339 | Ozzy Osbourne | German Wikipedia | 18,047 | 3 | 19 |
| 340 | Ozzy Osbourne discography | English Wikipedia | 57,832 | 11 | 56 |
| 341 | Österreich | German Wikipedia | 9,095 | 39 | 56 |
| 342 | Ōoku: The Inner Chambers | English Wikipedia | 14,482 | 6 | 474 |
| 343 | Обсессивно-компульсивное расстройство | Russian Wikipedia | 3,597 | 8 | 132 |
| 344 | Общак (ОПГ) | Russian Wikipedia | 4,709 | 4 | 117 |
| 345 | Овечкин, Александр Михайлович | Russian Wikipedia | 26,157 | 12 | 9 |
| 346 | Овуляция | Russian Wikipedia | 6,334 | 11 | 53 |
| 347 | Одесский пароход | Russian Wikipedia | 12,337 | 4 | 46 |
| 348 | Один дома | Russian Wikipedia | 18,894 | 5 | 24 |
| 349 | Один дома 2: Потерявшийся в Нью-Йорке | Russian Wikipedia | 7,778 | 3 | 134 |
| 350 | Одни из нас (2-й сезон) | Russian Wikipedia | 12,336 | 4 | 18 |
| 351 | Одни из нас (телесериал) | Russian Wikipedia | 18,536 | 12 | 21 |
| 352 | Одноклассники (социальная сеть) | Russian Wikipedia | 23,122 | 38 | 10 |
| 353 | Однопользовательская игра | Russian Wikipedia | 12,543 | 17 | 34 |
| 354 | Озон | Russian Wikipedia | 4,249 | 4 | 139 |
| 355 | Оленёнок (телесериал) | Russian Wikipedia | 7,723 | 3 | 64 |
| 356 | Оливье (салат) | Russian Wikipedia | 8,442 | 3 | 93 |
| 357 | Оппенгеймер (фильм) | Russian Wikipedia | 22,336 | 14 | 10 |
| 358 | Оппенгеймер, Роберт | Russian Wikipedia | 31,172 | 20 | 4 |
| 359 | Орешник (ракета) | Russian Wikipedia | 17,265 | 3 | 14 |
| 360 | Ортега, Дженна | Russian Wikipedia | 20,215 | 9 | 29 |
| 361 | Орудия (фильм) | Russian Wikipedia | 8,170 | 3 | 29 |
| 362 | Осборн, Оззи | Russian Wikipedia | 25,856 | 3 | 7 |
| 363 | Оскар (кинопремия, 2025) | Russian Wikipedia | 15,255 | 4 | 24 |
| 364 | Османская империя | Russian Wikipedia | 5,499 | 4 | 92 |
| 365 | Острые козырьки | Russian Wikipedia | 4,753 | 5 | 96 |
| 366 | Отечественная война 1812 года | Russian Wikipedia | 4,499 | 5 | 144 |
| 367 | Отче наш | Russian Wikipedia | 6,643 | 14 | 64 |
| 368 | Охлобыстин, Иван Иванович | Russian Wikipedia | 6,357 | 3 | 74 |
| 369 | Очень странные дела | Russian Wikipedia | 3,274 | 3 | 114 |