Jeong-un Ko
- Date of birth/Age: Jun 27, 1966 (57)
- Place of birth: Wanju, Jeollabuk
- Citizenship: Korea, South
- Height: 1,77 m
- Position: Right Midfield
- Former International: South Korea
- Caps/Goals: 77 / 10
Currently working as:
Manager
Club:
Gimpo FC