| Official Name: | Thomassique |
| Native Name: | Tomasik |
| Settlement Type: | Commune |
| Pushpin Map: | Haiti |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Haiti |
| Subdivision Type: | Country |
| Subdivision Name: | Haiti |
| Subdivision Type1: | Department |
| Subdivision Name1: | Centre |
| Subdivision Type2: | Arrondissement |
| Subdivision Name2: | Cerca-la-Source |
| Population As Of: | 7 August 2003 |
| Population Footnotes: | [1] |
| Population Total: | 42,557 |
| Coordinates: | 19.0833°N -71.8333°W |
| Elevation M: | 299 |
Thomassique (pronounced as /fr/; ht|Tomasik) is a commune in the Cerca-la-Source Arrondissement, in the Centre department of Haiti. It has 42,557 inhabitants.