 | Oh! What a Day | Short Movie | 1918 | |
| Oh! What's the Use? | Short Movie | 1914 | |
| Oh, cielos | Movie | 1995 | |
| Oh, diese Jugend | Movie made for TV | 1962 | |
| Oh, diese Tante | Movie made for TV | 1978 | |
| Oh, es sashineli televizori | Movie | 1990 | (Oh! This Terrible TV) |
| Oh, God! | Movie | 1977 | (Oh, Gott) |
| Oh, God! Book II | Movie | 1980 | (A Menina que Viu Deus) |
| Oh, God! You Devil | Movie | 1984 | (Oh Gott! Du Teufel) |
| Oh, mia bella matrigna | Movie | 1976 | (A Minha Bela Madrinha) |
| Oh, Mr. Porter! | Movie | 1937 | (Otto, zieh' die Bremse an!) |
| Oh, Ramona! | Movie | 2019 | |
| Oh, What a Night | Movie | 1992 | (О, каква нощ!) |
| Oh. What. Fun. | Movie | 2025 | |
| Ohi | Movie | 1969 | |
| Ohlédnutí (Looking Back) | Movie | 1969 | (Ohlednuti) |
| Ohne Dich (What the Cliffs Last Saw) | Movie made for TV | 2014 | (Uden dig) |
| Ohne jede Spur - Der Fall der Nathalie B. (Without a Trace - The Case of Nathalie B.) | Movie made for TV | 2025 | (Du kriegst mich nicht) |
| Ohne Krimi geht die Mimi nie ins Bett | Movie | 1962 | |
| Ohne Schnitzel geht es nicht | TV Series | 2019 | (Schnitzel XXL) |
| Ohtlik lend | TV Series | 2006-2007 | (Опасный полет) |
| Ohtlikud kurvid | Movie | 1961 | (Опасные повороты) |
| Ohtlikud mängud | Movie | 1974 | |
| Oi andres xeroun n' agapoun | Movie | 1971 | |
| Oi apanthropoi | Movie | 1976 | (S.S. sezione sequestri) |
| Oi dak hei | Movie | 2009 | (Ai de qi) |
| Oi dromoi tis polis | TV Series | 1995-1996 | |
| Oi dyo fygades | Movie | 1984 | |
| Oi enohoi | Movie | 1966 | |
| Oi ippeis tis Pylou | Movie | 2011 | |
| Oi joi hak se wui dik yat ji | Movie | 1993 | (Love Among the Triad) |
| Oi peripeteies tou Villar | Short Movie | 1924 | |
| Oi pontioi | Movie | 1986 | |
| Oi treis pseftes | Movie | 1970 | |
| Oi yue shing | Movie | 2000 | |
| Ôi! Mẹ chồng | Mini-Series | 2006 | |
| Oil, Smoke & Mirrors | Documentary | 2006 | (Pétrole & Ecrans de fumées) |
| Oily to Bed, Oily to Rise | Short Movie | 1939 | (The Three Stooges: Oily to Bed, Oily to Rise) |
| Oj! Nie moge sie zatrzymac! | Short Movie | 1975 | (Oh, je ne peux pas m'arrêter!) |
| Ojciec | Movie made for TV | 1967 | (The Father) |
| Ojciec Mateusz | TV Series | 2008-2026 | |
| Ojos que no ven (What the Eye Doesn't See) | Movie | 2003 | (Olhos Que Não Vêem) |
| Ojosan shacho | Movie | 1953 | (お嬢さん社長) |
| OK 12 startuje (OK 12 Departs) | Movie | 1961 | |
| OK Connery | Movie | 1967 | (Operation Double 007) |
| OK Go: Needing/Getting | Music Video | 2012 | |
| OK Go: This Too Shall Pass | Music Video | 2010 | |
| OK K.O.! Let's Be Heroes | Animation Series | 2017-2019 | |
| Oka s beregov Volgi | Documentary | 1988 | |
| Ôkami | Movie | 1955 | (Wolf) |
| Ôkami to buta to ningen | Movie | 1964 | (Hommes, porcs et loups) |
| Okashina gamuboru | Animation Series | 1995-2006 | |
| Okay S.I.R. | TV Series | 1973-1974 | |
| Okay Toots! | Short Movie | 1935 | |
| Okean Elzy: 911 | Music Video | 2009 | |
| Okhota | Mini-Series | 2014 | |
| Okhota na geniya | TV Series | 2006 | |
| Okhota na izyubrya | Mini-Series | 2005 | |
| Okhota na Piranyu | Movie | 2006 | (Piranha) |
| Okhotnik | Movie | 2005 | (The hunter) |
| Okhotnitsa | Mini-Series | 2020 | |
| Okkupert (Occupied) | TV Series | 2015-2017 | (Okupace) |
| Oklahoma Crude (L'Or noir de l'Oklahoma) | Movie | 1973 | (L'Or noir de l'Oklahoma) |
| Okno | Movie | 1983 | |
| Okolice spokojnego morza | Movie | 1981 | (Environs of a Quiet Sea) |
| Okovani soferi | Movie | 1974 | (Edinstvennaya doroga) |
| Okres na severu | TV Series | 1981 | |
| Okresní přebor | TV Series | 2010 | (Okresný prebor) |
| Okresní přebor - Poslední zápas Pepika Hnátka | Movie | 2012 | (Okresni prebor: Posledni zapas Pepika Hnatka) |
| Okruch lustra | Movie made for TV | 1978 | |
| Oksat pois... | Movie | 1961 | |
| Oktapodi | Movie made for TV | 1996 | |
| Oktapodi | Animation Movie | 2007 | |
| Oktoberfest | Movie | 1987 | |
| Oktopus | TV Series | 2023 | |
| Okul | Movie | 2004 | |
| Okupacija u 26 slika | Movie | 1978 | (Occupation in 26 Pictures) |
| Okupas | TV Series | 2000 | |
| Okupas | Documentary | 2010 | |
| Ol' #23 | Short Movie | 1980 | |
| Ol' Dirty Bastard feat. Kelis: Got Your Money | Music Video | 1999 | |
| Ola de crímenes (Wave of Crimes) | Movie | 2018 | (Crime Wave) |
| Ola och Julia | Movie | 1967 | (Ola & Julia) |
| Olacak O Kadar | TV Series | 1986-2003 | |
| Old | Movie | 2021 | |
| Old 37 | Movie | 2015 | (Highway 37 - Tödlicher Notruf) |
| Old Acquaintance | Movie | 1943 | (In Freundschaft verbunden) |
| Old Boyfriends | Movie | 1979 | (Meine alten Freunde) |
| Old Boys | Movie | 2018 | |
| Old Dads | Movie | 2023 | (Papás a la antigua) |
| Old Dogs | Movie | 2009 | (Les 2 font la 'père') |
| Old Dominion: Break Up with Him | Music Video | 2015 | |
| Old Enough | Movie made for TV | 1984 | (Jackals) |
| Old Fashioned | Movie | 2014 | |
| Old Friends | Short Movie | 2019 | |
| Old Gringo | Movie | 1989 | (Gringo viejo) |
| Old Joy | Movie | 2006 | |
| Old Man | Movie | 2004 | |
| Old Man Hates New Cars | Short Movie | 2011 | |
| Old Mother Riley | Movie | 1937 | (The Original Old Mother Riley) |