| Port-Launay | |
| Native Name: | Meilh-ar-Wern |
| Commune Status: | Commune |
| Coordinates: | 48.2164°N -4.0694°W |
| Elevation Min M: | 2 |
| Elevation Max M: | 86 |
| Insee: | 29222 |
| Postal Code: | 29150 |
| Arrondissement: | Châteaulin |
| Canton: | Crozon |
| Mayor: | Gaël Calvar[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pleyben-Châteaulin-Porzay |
| Area Km2: | 2.00 |
Port-Launay (in French pronounced as /pɔʁ lonɛ/;) is a commune in the Finistère department of Brittany in north-western France.
Inhabitants of Port-Launay are called in French Port-Launistes.