| Trébabu | |
| Native Name: | Trebabu |
| Commune Status: | Commune |
| Coordinates: | 48.3711°N -4.7339°W |
| Elevation Min M: | 1 |
| Elevation Max M: | 58 |
| Insee: | 29282 |
| Postal Code: | 29217 |
| Arrondissement: | Brest |
| Canton: | Saint-Renan |
| Mayor: | Jean Jacques Berthevas[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays d'Iroise |
| Area Km2: | 4.36 |
Trébabu (in French pronounced as /tʁebaby/;) is a commune in the Finistère department of Brittany in north-western France.
Inhabitants of Trébabu are called in French Trébabusiens.