Llanfihangel-y-Pennant is a small village in Gwynedd, Wales. It is in the community of Dolbenmaen in Snowdonia. The ancient ecclesiastical parish of Llanfihangel-y-Pennant is part of the bishopric of Bangor.
It is named after Cwm Pennant, a valley which stretches from north of the villages of Dolbenmaen and Golan towards the Drwys y Coed pass, between Moel Hebog and Crib Nantlle.
The parish church is dedicated to Saint Michael; Llanfihangel being the Welsh for the church of St. Michaels.