| Kersaint-Plabennec | |
| Native Name: | Kersent-Plabenneg |
| Commune Status: | Commune |
| Coordinates: | 48.4733°N -4.3731°W |
| Insee: | 29095 |
| Postal Code: | 29860 |
| Arrondissement: | Brest |
| Canton: | Plabennec |
| Mayor: | Patrice Boucher[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays des Abers |
| Elevation Min M: | 48 |
| Elevation Max M: | 121 |
| Area Km2: | 12 |
Kersaint-Plabennec (in French pronounced as /kɛʁsɛ̃ plabɛnɛk/;) is a commune in the Finistère department of Brittany in northwestern France.
Inhabitants of Kersaint-Plabennec are called in French Kersaintais.