| Langoat | |
| Native Name: | Langoad |
| Commune Status: | Commune |
| Coordinates: | 48.7514°N -3.2797°W |
| Insee: | 22101 |
| Postal Code: | 22450 |
| Arrondissement: | Lannion |
| Canton: | Tréguier |
| Mayor: | Hervé Delisle[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Lannion-Trégor Communauté |
| Elevation Min M: | 2 |
| Elevation Max M: | 89 |
| Area Km2: | 18.50 |
Langoat (in French pronounced as /lɑ̃ɡwat/; Breton: Langoad) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.
Inhabitants of Langoat are called langoatais in French.
The local church was founded by Saint Pompeia in the 6th century.