Coordinates: 53°16′01″N 3°10′34″W / 53.267°N 3.176°W
Delyn is an area in north Wales. From 1974 to 1996 it was a district of Clwyd, but is now included in the county of Flintshire. Delyn is twinned with Menden, Germany.
The Borough of Delyn was formed in 1974 under the Local Government Act 1972 by the merger of Flint Municipal Borough with the urban districts of Holywell and Mold, and Holywell Rural District.
The name "Delyn" was formed by combining the names of the area's principal rivers: the Dee and the Alyn. The neighbouring district was originally named Alyn-Dee for the same reason. "Y Delyn" is also Welsh for "The Harp", a fact reflected in the borough's coat of arms.