Treffrin (Treffrin)
- commune in Côtes-d'Armor, France
- Country:
- Postal Code: 22340
- Coordinates: 48° 17' 56" N, 3° 31' 1" E
- GPS tracks (wikiloc): [Link]
- Area: 7.47 sq km
- Population: 571
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q751380
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03m4_s3]
- Freebase ID: [/m/03m4_s3]
- GeoNames ID: Alt: [6612347]
- GeoNames ID: Alt: [6612347]
- SIREN number: [212203517]
- SIREN number: [212203517]
- BnF ID: [152513489]
- BnF ID: [152513489]
- INSEE municipality code: 22351
- INSEE municipality code: 22351
Shares border with regions:

Le Moustoir
- commune in Côtes-d'Armor, France
- Country:
- Postal Code: 22340
- Coordinates: 48° 15' 56" N, 3° 30' 8" E
- GPS tracks (wikiloc): [Link]
- Area: 14.85 sq km
- Population: 674


Carhaix-Plouguer
- commune in Finistère, France
- Country:
- Postal Code: 29270
- Coordinates: 48° 16' 33" N, 3° 34' 28" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 104 м m
- Area: 25.81 sq km
- Population: 7305
- Web site: [Link]


Plounévézel
- commune in Finistère, France
- Country:
- Postal Code: 29270
- Coordinates: 48° 17' 56" N, 3° 35' 23" E
- GPS tracks (wikiloc): [Link]
- Area: 24.42 sq km
- Population: 1255
- Web site: [Link]


Carnoët
- commune in Côtes-d'Armor, France
- Country:
- Postal Code: 22160
- Coordinates: 48° 22' 4" N, 3° 31' 17" E
- GPS tracks (wikiloc): [Link]
- Area: 42.06 sq km
- Population: 683


Trébrivan
- commune in Côtes-d'Armor, France
- Country:
- Postal Code: 22340
- Coordinates: 48° 18' 32" N, 3° 28' 31" E
- GPS tracks (wikiloc): [Link]
- Area: 22.96 sq km
- Population: 723