Llanfihangel (English: St Michael's Church) can refer to the following places in Wales:
- Llanfihangel Aberbythych, Carmarthenshire
- Llanfihangel y Creuddyn, Ceredigion
- Llanfihangel-ar-Arth, Carmarthenshire
- Llanfihangel Crucorney, Monmouthshire
- Llanfihangel Genau'r Glyn, the former name for Llandre, Ceredigion
- Llanfihangel Nant Bran, Powys
- Llanfihangel Nant Melan, Powys
- Llanfihangel Rhos-y-Corn, Carmarthenshire
- Llanfihangel Tre'r Beirdd, on the Isle of Anglesey
- Llanfihangel-y-Pennant, a community in Gwynedd
- Llanfihangel-y-Pennant, Dolbenmaen, a village in the community of Dolbenmaen in Gwynedd
- Llanfihangel-y-Rug is nowadays called Llanrug
- Llanfihangel-yng-Ngwynfa, Powys