Llangelynnin may refer to:
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Llangelynnin, Conwy, a former parish in Conwy County Borough, Wales
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Llangelynnin, Gwynedd
Llangelynnin (; also Llangelynin) is a small village and community near Tywyn, Gwynedd, Wales. Although the village is usually known as ''Llangelynnin'' in English, the community name used is ''Llangelynin''.
St Celynnin's Church
The parish ch ...
, a village and community in Gwynedd, Wales
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