Llanfihangel (English: St Michael's Church) can refer to the following places in Wales:
- Llanfihangel (Powys electoral ward), including Llanfihangel-yng-Ngwynfa
- Llanfihangel Aberbythych, Carmarthenshire
- Llanfihangel Bachellaeth, Gwynedd
- Llanfihangel y Creuddyn, Ceredigion
- Llanfihangel-ar-Arth, Carmarthenshire
- Llanfihangel Crucorney, Monmouthshire
- Llanfihangel Genau'r Glyn, the former name for Llandre, Ceredigion
- Llanfihangel Glyn Myfyr, Conwy
- Llantarnam (Welsh: Llanfihangel Llantarnam), Torfaen
- Llanfihangel Nant Brân, Powys
- Llanfihangel Nant Melan, Powys
- Llanfihangel Penbedw, a former parish in the Hundred of Kilgerran, Pembrokeshire
- Llanfihangel Rhos-y-Corn, Carmarthenshire
- Llanfihangel Rhydithon, Powys
- Llanfihangel Talyllyn, Powys
- Llanfihangel Tor-y-Mynydd, Monmouthshire
- 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, Gwynedd
- Llanfihangel-y-Rug is nowadays called Llanrug
- Llanfihangel-y-traethau, a church near the village of Ynys, Gwynedd
- Llanfihangel-yng-Ngwynfa, Powys
- Llanfihangel Ysgeifiog, Isle of Anglesey