- Omar Dhani
- Omar Daniel
- Mullah Omar
- Omar Marmoush
- Omar
- Eddy Hiariej
- Cinta dalam Ikhlas
- Hassanal Bolkiah dari Brunei
- Tim nasional sepak bola Indonesia
- Soeharto
- JD Cagulangan
- Claude Diomar
- Diomar Díaz
- UP Fighting Maroons men's basketball
- Díaz (surname)
- Deportivo Táchira F.C.
- New York Cosmos (2010)
- Athletics at the 2010 South American Games – Men's 800 metres
- New Zealand men's national under-23 softball team
- 2018 Copa Sudamericana
