| Kemasik | |
| Native Name: | كماسيق |
| Settlement Type: | Town in Kemaman |
| Coordinates: | 4.4194°N 103.4167°W |
| Pushpin Map: | Malaysia Terengganu#Malaysia West#Malaysia |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Kemasik in Terengganu |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | District |
| Subdivision Name2: | Kemaman |
| Area Total Km2: | 65.64 |
| Population As Of: | 2020 |
| Population Total: | 10,247 |
| Postal Code Type: | postcode |
| Postal Code: | 24200 |
Kemasik (Jawi: كماسيق) is a mukim in Kemaman District, Terengganu, Malaysia. The town's major attraction is Kemasik Beach (Pantai Kemasik in Malay).
East Coast Expressway (Lebuhraya Pantai Timur), exit 847 (Kertih Interchange) serves Kemasik.