Willenhall is a market town in the Metropolitan Borough of Walsall, in the county of West Midlands, England. At the 2021 Census the town had a population of 49,587. It lies between Wolverhampton and Walsall on the River Tame, and is contiguous with both Wolverhampton and South Staffordshire. The M6 motorway at Junction 10 separates it from Walsall.
The town, formerly in the county of Staffordshire, is historically famous for the manufacture of locks and keys. As early as 1770, Willenhall contained 148 skilled locksmiths and its coat of arms reflects the importance of this industry to its growth. It was home to the National Union of Lock and Metal Workers from 1889 until 2004. Its motto is Salus Populi Suprema Lex – The welfare of the people is the highest law.