Plévin (French pronunciation: [plevɛ̃]; Breton: Plevin) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Inhabitants of Plévin are called plévinois in French.

Plévin is located on the northern slope of the Montagnes Noires (french, Black Mountains), 51 km (32 mi) northeast of Quimper, 53 km (33 mi) north of Lorient and 64 km (40 mi) southwest of Saint-Brieuc.

Plévin is border by Tréogan and Motreff to the west, by Carhaix-Plouguer and Le Moustoir to the north, by Paule to the east and by Langonnet to the south.

Reverend Father Julien Maunoir died in Plévin in January 28, 1693.