Medlar-with-Wesham is a civil parish and an electoral ward on the Fylde in Lancashire, England, which contains the town of Wesham. It lies within the Borough of Fylde, and had a population of 3,245 in 1,294 households recorded in the 2001 census rising to 3,584 in 1,511 households, at the 2021 census.

The Fylde is a coastal plain in western Lancashire, England. It is roughly a 13-mile-long (21-kilometre) square-shaped peninsula, bounded by Morecambe Bay to the north, the Ribble estuary to the south, the Irish Sea to the west, and the foot of the Bowland hills to the east which approximates to a section of the M6 motorway and West Coast Main Line.