Fréhel (Breton: Frehel, Gallo: Fèrhaèu) is a commune in the Côtes-d'Armor department of Brittany in north-western France.

This commune was previously named Pléhérel. Between 1972 and 2004, the commune of Plévenon was merged with Pléhérel and the combination of the two took the name of Fréhel, drawn from the name of Cap Fréhel, on which both communes were located. However, in 2004, Plévenon became once again a distinct commune, while Pléhérel retained the name of the commune of Fréhel.