| Birth Date: | 18 May 1950 |
| Birth Place: | Gyeongun, South Korea |
| Height: | 175 cm |
| Weight: | 78 kg |
| Sport: | Athletics |
| Event: | Shot put |
| Pb: | 16.96 m (1974) |
| Show-Medals: | yes |
Paik Ok-ja or Baeg Ok-ja (born May 18, 1950) is a retired South Korean shot putter who won gold medals at the 1970 and 1974 Asian Games. She placed 13th–15th at the 1968 and 1972 Summer Olympics.