| Petit-Tenquin | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Petit-Tenquin 57.svg |
| Arrondissement: | Forbach-Boulay-Moselle |
| Canton: | Sarralbe |
| Insee: | 57536 |
| Postal Code: | 57660 |
| Mayor: | Vincent Muller[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Saint-Avold Synergie |
| Coordinates: | 48.9894°N 6.8622°W |
| Elevation M: | 235 |
| Elevation Min M: | 215 |
| Elevation Max M: | 251 |
| Area Km2: | 4.88 |
Petit-Tenquin (in French pronounced as /pəti tɑ̃kɛ̃/; Lorraine Franconian: Klä-Tenschen/Klän Tensche; German: Kleintänchen) is a commune in the Moselle department in Grand Est in north-eastern France.