Subreddits Starting With O
143 subreddits, largest first. Member counts come from the Arctic Shift archive; activity is live.
| Subreddit | Members | Last post | Status |
|---|---|---|---|
| r/OldSchoolCool | 18.6M | — | — |
| r/oddlysatisfying | 11.9M | 1 month ago | Borderline |
| r/Overwatch | 6.1M | — | Active |
| r/OnePiece | 5.3M | — | Active |
| r/Outdoors | 5.1M | 1 month ago | Borderline |
| r/OUTFITS | 3.3M | 1 month ago | Borderline |
| r/OpenAI | 2.7M | — | Active |
| r/options | 1.3M | 1 month ago | Borderline |
| r/onebag | 805.7K | 1 month ago | Borderline |
| r/offbeat | 743.5K | — | — |
| r/onions | 503.3K | — | Active |
| r/oneplus | 304.1K | 1 month ago | Borderline |
| r/overclocking | 302.0K | 1 month ago | Borderline |
| r/Oxygennotincluded | 218.5K | — | Active |
| r/OtomeIsekai | 200.8K | — | Active |
| r/ObsidianMD | 192.3K | 1 month ago | Borderline |
| r/OLED_Gaming | 168.9K | — | Active |
| r/orangecats | 165.2K | — | Active |
| r/Office365 | 153.8K | — | Active |
| r/OldManDog | 150.2K | 1 month ago | Borderline |
| r/oscarrace | 139.2K | — | Active |
| r/oneanddone | 89.7K | — | Active |
| r/osx | 75.1K | — | — |
| r/OpenChristian | 70.1K | — | Active |
| r/oscp | 67.2K | 1 month ago | Borderline |
| r/onednd | 49.6K | — | Active |
| r/Offroad | 48.9K | — | Active |
| r/OneTopicAtATime | 48.6K | — | Active |
| r/OffGridLiving | 48.3K | — | Active |
| r/OverwatchCirclejerk | 45.9K | — | Active |
| r/openttd | 44.6K | — | Active |
| r/onegoldenbraincell | 44.5K | — | Active |
| r/OnePieceSpoilers | 42.2K | — | Active |
| r/offmenupodcast | 42.2K | — | Active |
| r/ofcoursethatsasub | 40.4K | — | Active |
| r/offerup | 39.3K | — | Active |
| r/OffMyChestIndia | 38.6K | — | Active |
| r/ONETREEHILL | 38.5K | — | Active |
| r/openwrt | 38.2K | — | Active |
| r/OneY | 37.3K | 8 months ago | Eligible |
| r/openSUSE | 36.7K | — | Active |
| r/OneTruthPrevails | 36.5K | — | Active |
| r/OctopusEnergy | 36.4K | — | Active |
| r/OverwatchLFT | 35.9K | — | Active |
| r/onlinegambling | 34.8K | 1 days ago | Active |
| r/OpenUniversity | 33.6K | — | Active |
| r/okcopainattard | 33.6K | — | Active |
| r/OneTrueTohsaka | 33.1K | — | Active |
| r/onebros | 32.3K | — | Active |
| r/OneTrueRem | 31.7K | — | Active |
| r/optionstrading | 31.3K | — | Active |
| r/OnePieceBrasil | 31.0K | — | Active |
| r/overcominggravity | 31.0K | — | Active |
| r/opengl | 30.7K | — | Active |
| r/OnlineESLTeaching | 29.4K | 1 days ago | Active |
| r/obama | 29.1K | — | — |
| r/overlyspecificEDmemes | 27.3K | — | Active |
| r/overheard | 25.6K | — | Active |
| r/Over30Selfie | 25.2K | — | Active |
| r/osureport | 25.2K | — | Active |
| r/OneProtectRestAttack | 23.3K | — | Active |
| r/OvercookedGame | 22.8K | — | Active |
| r/offwhite | 22.8K | — | Active |
| r/Overlandpark | 22.8K | — | Active |
| r/OpenMediaVault | 22.3K | 5 months ago | Eligible |
| r/office | 22.2K | — | Active |
| r/OpenSeaNFT | 22.1K | — | Active |
| r/OffTheGrid | 22.1K | — | Active |
| r/overpopulation | 22.0K | — | Active |
| r/oracle | 22.0K | — | — |
| r/otaku | 20.8K | — | Active |
| r/OfficeLadiesPodcast | 19.9K | — | Active |
| r/onepagerules | 19.8K | — | Active |
| r/OnePunchManTurkce | 19.6K | 9 months ago | Eligible |
| r/openbsd | 19.6K | — | Active |
| r/OnePieceCircleJerk | 19.4K | — | Active |
| r/OlympiqueLyonnais | 18.8K | — | Active |
| r/onexindia | 18.7K | — | Active |
| r/onlinejobsforall | 18.4K | 1 days ago | Active |
| r/OVER30REDDIT | 18.2K | — | Active |
| r/OnePieceFR | 18.0K | — | Active |
| r/Odoo | 17.7K | — | Active |
| r/OpenWebVPN | 17.7K | — | Active |
| r/opencv | 17.6K | — | Active |
| r/openstreetmap | 17.3K | — | Active |
| r/opensouls3 | 17.3K | — | Active |
| r/OfflineDay | 17.1K | — | Active |
| r/OpenEmu | 17.0K | — | Active |
| r/OnlineEducation | 16.8K | 1 days ago | Active |
| r/Overgeared | 16.7K | — | Active |
| r/OpenClawUseCases | 16.7K | — | Active |
| r/openmarriageregret | 16.5K | — | Active |
| r/OverwatchCustomGames | 15.9K | — | Active |
| r/OfficeSpeak | 15.7K | — | Active |
| r/OnePelotonRealSub | 15.3K | — | Active |
| r/onlinesoccermanager | 14.5K | 2 days ago | Active |
| r/OvereatersAnonymous | 14.5K | — | Active |
| r/OnlineDatingApps | 14.3K | 1 days ago | Active |
| r/onedrive | 14.2K | — | Active |
| r/OneTrueEmilia | 14.0K | — | Active |
| r/OnlineIncomeHustle | 13.7K | 3 months ago | Eligible |
| r/OfficeDepot | 13.5K | — | Active |
| r/OneTrueMiia | 13.4K | — | Active |
| r/onepagerpgs | 12.7K | — | Active |
| r/officialwarzonemobile | 12.1K | 1y 8mo ago | Eligible |
| r/OneDayNetflix | 11.6K | — | Active |
| r/onesentencehorror | 11.3K | 9 months ago | Eligible |
| r/OnePlus7Pro | 11.2K | — | Active |
| r/Offwallstreetbets | 11.2K | — | Active |
| r/ofcoursetheyknew | 10.9K | — | Active |
| r/OfficeDrummer | 10.7K | — | Active |
| r/offthegame | 10.6K | — | Active |
| r/onlinelifetips | 10.2K | 16 days ago | Active |
| r/OnlineMoneyMaking | 10.2K | 1y 6mo ago | Eligible |
| r/OnlineBargains | 9.4K | 1y 4mo ago | Eligible |
| r/OffGridProjects | 8.8K | — | Active |
| r/OnlineJobsatHome | 8.1K | 1 days ago | Active |
| r/OnlineMarketing | 7.9K | — | Active |
| r/OfficialTrumpCoin | 7.9K | — | Active |
| r/onlinesugardaddies | 7.8K | 1y 3mo ago | Eligible |
| r/overemployed_swe | 7.7K | — | Active |
| r/optimization | 7.6K | — | Active |
| r/Overseas_Pakistani | 6.8K | — | Active |
| r/Overseerr | 6.4K | — | Active |
| r/OverwatchHeroConcepts | 6.3K | — | Active |
| r/officehourslive | 6.2K | — | Active |
| r/OverFifty | 6.1K | — | Active |
| r/OffRoadTrailer | 5.7K | — | Active |
| r/Offroadoutlaws | 5.6K | — | Active |
| r/OfficialKonstantin | 5.4K | — | Active |
| r/OnlineSurvivor | 5.2K | 2 days ago | Active |
| r/offshorefishing | 5.0K | — | Active |
| r/offensive_security | 5.0K | — | Active |
| r/onlineceramics | 4.7K | 2 days ago | Active |
| r/OnlineMCIT | 4.6K | 1 days ago | Active |
| r/onlinepoker | 4.4K | 1 days ago | Active |
| r/onlinejournalism | 3.3K | 6 months ago | Eligible |
| r/otakuvs | 2.2K | — | Active |
| r/Outfits_moment | 2.1K | 4 months ago | Eligible |
| r/onlinecasinoadvisor | 1.6K | 3 months ago | Eligible |
| r/outfit_of_the_dad | 1.4K | — | Active |
| r/offensivememesforyou | 1.3K | 1y 3mo ago | Eligible |
| r/OnlineCasinoBlackjack | 1.1K | 3 months ago | Eligible |