Llangelynnin
（重定向自Llangelynin）
- For the village and ancient church of the same name near Fairbourne in the neighbouring county of Gwynedd, see Llangelynnin, Gwynedd.
Llangelynnin (Welsh for The church of Celynnin) is a former parish in the Conwy valley, in Conwy county borough, north Wales. Today the name exists only in connection with the church, a school in the nearby village of Henryd, and the nearby mountain ridge, Craig Celynnin.