 | Oscillations | Short Movie | 2003 | |
| Oscuro deseo | TV Series | 2020-2022 | (Dark Desire) |
| Osem osem: Stop | Music Video | 2003 | |
| Osem osem: Triumf na strastta | Music Video | 2004 | |
| Ôsen chitai | Movie | 1960 | (Tiger Track Zone) |
| Osennie soblazny | Movie | 1993 | (Autumn Temptations) |
| Osenniy podarok fey | Movie | 1984 | |
| Osenniye zaboty | Movie made for TV | 2009 | (Autumn Care) |
| Oser lutter, oser vaincre | Documentary | 1969 | |
| Oshaq Raghm Al-Talaq | TV Series | 2019 | |
| Oshte edna mechta | Movie | 2012 | (One more dream) |
| Osiecka | TV Series | 2020-2021 | |
| Oskar | Movie | 1962 | |
| Oslo Havn - byens hjerte | Documentary | 1952 | |
| Oslo sentrum | Documentary | 1954 | |
| Oslo, 31. august | Movie | 2011 | (Oslo, August 31st) |
| Oslo: 24 timer av byens liv | Documentary | 1950 | |
| Oslo: Byen med de grønne grenser | Documentary | 1953 | |
| Oslo: Et vinterturistsentrum | Documentary | 1947 | |
| Oslo: Sommerbyen mellom fjord og fjell | Documentary | 1948 | |
| Osloboduvanje na Skopje | Movie | 2016 | (Oslobođenje Skoplja) |
| Oslos nye bydeler | Documentary | 1958 | |
| Osman Navruzov & Noker Meretov: Do'stim | Music Video | 2025 | |
| Osmani Garcia feat. Pitbull, Sensato, Dayami La Musa: El Taxi | Music Video | 2014 | |
| Osmdesát dopisů (Eighty Letters) | Movie | 2011 | (80 lettres) |
| Osmi povjerenik (The Eighth Commissioner) | Movie | 2018 | (Uosmi puoveri) |
| Osmondagi bolalar (Boys in the Sky) | Movie | 2003 | (Malchiki v nebe) |
| Osmondagi bolalar 2 (Boys in the Sky 2) | Movie | 2004 | (Malchiki v nebe 2) |
| Osmosis Jones | Movie | 2001 | (Осмозис Джоунс) |
| Osmy | Movie made for TV | 2014 | |
| Ósmy dzien tygodnia | Movie | 1958 | (Der achte Wochentag) |
| Osobennosti bannoy politiki, ili banya 2 | Movie | 2000 | |
| Osobennosti natsionalnoy okhoty v zimniy period | Movie | 2000 | |
| Osobennosti natsionalnoy politiki | Movie | 2003 | |
| Osobiy sluchay | Mini-Series | 2001 | |
| Osombie | Movie | 2012 | (Osombie: The Axis of Evil Dead) |
| Osôshiki | Movie | 1984 | (The Funeral) |
| Ospiti | Movie | 1998 | (Guests) |
| OSS 117 n'est pas mort | Movie | 1957 | (Geheimagent 117) |
| OSS 117 prend des vacances | Movie | 1970 | (OSS 117 Takes a Vacation) |
| OSS 117 se déchaîne | Movie | 1963 | (OSS 117 segretissimo) |
| OSS 117: Alerte rouge en Afrique noire | Movie | 2021 | (OSS 117: From Africa with Love) |
| OSS 117: Le Caire nid d'espions | Movie | 2006 | (OSS 117: Cairo, Nest of Spies) |
| OSS 117: Rio ne répond plus (OSS 117: Lost in Rio) | Movie | 2009 | (OSS 117, Lost in Rio) |
| OSS 77: Operazione fior di loto | Movie | 1965 | (OSS 77 - operaatio Lootuskukka) |
| Oss baroner emellan | Movie | 1939 | (Vi baroner) |
| Oss emellan | Movie | 1969 | |
| Oss fotgjengere imellom | Documentary | 1953 | |
| Ossan's Love: Love or Dead | Movie | 2019 | |
| Ossessione | Movie | 1943 | (Obsession) |
| Ossessione fatale | Movie | 1991 | (Dangerous Game) |
| Ossi's Eleven | Movie | 2008 | |
| Ostanniy bunker | Movie | 1991 | |
| Ostansya | Movie | 1992 | |
| Ostatni dzwonek | Movie | 1989 | (The Last Schoolbell) |
| Ostatni etap | Movie | 1947 | (The Last Stop / The Last Stage) |
| Ostatni klaps | Movie | 2015 | |
| Ostatni kurs | Movie | 1963 | (The Last Ride) |
| Ostatni po Bogu | Movie | 1968 | (Last After the God) |
| Ostatnia akcja (The Last Action) | Movie | 2009 | |
| Ostatnia misja | Movie | 2000 | (Utolsó küldetés) |
| Ostatnia rodzina | Movie | 2016 | (The Last Family) |
| Ostavljeni | Movie | 2010 | (The Abandoned) |
| Österreich 1938 in Farbe | Documentary | 2008 | |
| Osterspaziergang | Short Movie | 1959 | |
| Ostfriesenhölle | Movie made for TV | 2025 | (Les empoisonneurs) |
| Ostia | Movie | 1970 | |
| Ostia: Panda Bianca | Music Video | 2024 | |
| Ostinato destino | Movie | 1992 | |
| Ostorozhno, Zadov | TV Series | 2004-2006 | |
| Ostravak Ostravski | Movie | 2016 | |
| Ostre sledované vlaky | Movie | 1966 | (Ostře sledované vlaky) |
| Ostrov pogibshikh korabley | Movie | 1987 | |
| Ostrożnie, Yeti! | Movie | 1961 | (Beware of Yeti!) |
| Ostrým nožom | Movie | 2019 | |
| Ostwind | Movie | 2013 | (Windstorm) |
| Ostwind 2 | Movie | 2015 | (Windstorm 2) |
| Ostwind 3: Aufbruch nach Ora | Movie | 2017 | (Windstorm - Ritorno alle origini) |
| Ostwind: Aris Ankunft | Movie | 2019 | |
| Ostzone | Movie | 2016 | |
| Osveta | Movie | 1986 | (Revenge) |
| Osvobození Prahy | Movie | 1978 | (Die Befreiung Prags) |
| Öt férfi komoly szándékkal | Movie made for TV | 1972 | |
| Ot nishto neshto | Movie | 1979 | (Something Out of Nothing) |
| Ota ala nar | Movie | 1977 | (A Cat on Fire) |
| Otac | Movie | 2020 | (Father) |
| Otac na sluzbenom putu | Movie | 1985 | (When Father Was Away on Business) |
| Otages (Hostages) | Movie made for TV | 2009 | |
| Otalia de Bahia | Movie | 1976 | |
| Otan oi rodes horevoun | Movie | 1984 | |
| Otar khagher | Movie | 1986 | (Strange Games) |
| Otchiy bereg | TV Series | 2017 | (Ancestral Land) |
| Otdel 'S.S.S.R.' | TV Series | 2012 | (Отдел С.С.С.Р.) |
| Otdelnoe poruchenie | Movie | 2012 | |
| Otec ma zderie tak či tak | Movie | 1980 | |
| Otec neznámý | Movie made for TV | 2001 | |
| Otecko sa mi nepáči | TV Series | 1991 | |
| Otel mertvetsov | Movie | 2013 | |
| Otel otagi | Movie | 1998 | |
| Otesánek | Movie | 2000 | (Greedy Guts) |