Bryn Du is a village in Anglesey, Wales.
It is situated within the LL63 postcode district, which is within the Ty Croes post town.
LL63 is the only postcode district within the Ty Croes post town.
The Ty Croes post town is within the Llandudno postcode area.
Administrative Ward: Aberffraw
Administrative District: Isle of Anglesey
Country: Wales
UK Parliament: Ynys Môn