| O. S. Ambika | |
| Birth Place: | Kerala |
| Party: | Communist Party of India (Marxist) |
| Termstart: | May 2021 |
| Assembly: | Kerala Legislative |
| Constituency Am: | Attingal |
O. S. Ambika is an Indian politician from Kerala. She is currently serving as the MLA of Attingal constituency since May 2021.[1]