Penllyn

Penllyn may refer to the following places:

United States

• Penllyn a village in Lower Gwynedd Township, Montgomery County, Pennsylvania

Wales

• Penllyn, Gwynedd, a former rural district in Gwynedd (1894-1974)
• Penllyn, Vale of Glamorgan, a village and community in the Vale of Glamorgan
• Penllyn (cantref), an ancient cantref of Gwynedd