O
- Ocean of milk
- Oddar Meancheay
- Odongk (district)
- One Evening After the War 1998 Drama Film by Rithy Panh
- Open Forum of Cambodia
- Operation Blue Angel
- Operation Chenla I
- Operation Chenla II
- Operation Eagle Pull
- Operation Freedom Deal
- Operation Menu
- Operation Patio
- Orn Euy Srey Orn
- Ou Reang Ov
- Oudong
Read more about this topic: Index Of Cambodia-related Articles