- On the Line (2001)
PG | Comedy/Romance
- One Crazy Summer (1986)
PG | Comedy/Romance
- One Perfect Match
NR | Romance
- One Snowy Christmas
NR | Romance/Holiday
- Oy to the World! (2025)
NR | Romance/Holiday
- Oo na... Mahal na Kung Mahal (1999)
NR | Romance/Comedy drama
- Operation Nutcracker (2024)
NR | Romance/Holiday
- Odd Thomas (2013)
NR | Romance/Horror
- Only Child
NR | Drama/Romance
- Our Transgender Love Story
NR | Romance/Documentary
- Our Dream Wedding
NR | Romance/Fantasy
- One Delicious Christmas
NR | Romance/Holiday
- Off the Menu
NR | Comedy/Romance
- On an Island With You (1948)
NR | Romance/Musical