| Film | Year |
|---|---|
| O Jane Wale | 1948 |
| O Panchhi | 1944 |
| O Pushpa I Hate Tears | 2020 |
| O Tera Kya Kahna | 1959 |
| O Teri | 2014 |
| Objection My God | 2014 |
| October | 2003 |
| October | 2018 |
| Odyssey of Persistence | 2011 |
| Officer | 2001 |
| Officer Arjun Singh IPS | 2019 |
| Officer Arjun Singh IPS Batch 2000 | 2019 |
| Oh Bewafa | 1980 |
| Oh Darling! Yeh Hai India! | 1995 |
| Oh God No God | 2012 |
| Oh God! Saare Hain Fraud | 2011 |
| Oh My Anand | 2007 |
| Oh My God | 2008 |
| Oh, My God | 2008 |
| Ok Jaanu | 2017 |
| Ok Mein Dhokhe | 2016 |
| Om | 1986 |
| Om | 2003 |
| Om Dar Ba Dar | 2014 |
| Om Jai Jagadish | 2002 |
| Om Shanti Om | 2007 |
| OM The Battle Within | 2021 |
| Om-Dar-B-Dar | 1988 |
| Om-Dar-B-Dar | 2014 |
| Omar Khaiyyam | 1946 |
| Omerta | 2018 |
| OMG – Oh My God! | 2012 |
| OMG O My God | 2012 |
| Omkara | 2006 |
| Omprakash Zindabad | 2020 |
| On The Ramp Never Ending Show | 2019 |
| Once Again | 2018 |
| Once Upon A Time In Bihar | 2015 |
| Once Upon a Time in Mumbaai | 2010 |
| Once Upon A Time In Mumbaai Dobaara | 2013 |
| One 2 Ka 4 | 2001 |
| One By Two | 2014 |
| One Day Justice Delivered | 2019 |
| One Day: Justice Delivered | 2019 |
| One Night Out | 2018 |
| One Night Stand | 2016 |
| One Two Three | 2008 |
| One Way Ticket | 2016 |
| Oomar Qaid | 1961 |
| Oonch Neech | 1948 |
| Oonch Neech Beech | 1989 |
| Oonche Log | 1965 |
| Oonche Log | 1985 |
| Oonchi Haveli | 1955 |
| Ooops A Desi | 2013 |
| Ooparwala Jaane | 1977 |
| Oops! | 2003 |
| Oos Raat Ke Baad | 1969 |
| Oot Patang | 1955 |
| Opera House | 1961 |
| Orphan Daughter | 1930 |
| Our Hindustan | 1928 |
| Out of Control | 2003 |
| Outlaw Of Sorath | 1930 |
| Overtime | 2012 |
| Oye Lucky! Lucky Oye! | 2008 |