- Ondine (2009)
- One (2017)
- One and Two (2015)
- One Bedroom (2018)
- One by Two (2014)
- One Chance (2013)
- One Child Nation (2019)
- One Cut of the Dead (2017)
- One Dark Night (1982)
- One Day (2010)
- One Day (2011)
- One Day at Disney (2019)
- One Day in September (1999)
- One Direction: This Is Us (2013)
- One Eight Seven (1997)
- One Eight Seven (187) (1997)
- One False Move (1992)