Walsden is a large village in the civil parish of Todmorden in the Metropolitan Borough of Calderdale, West Yorkshire, England. It was historically partially administered in Lancashire, and close to the modern boundary with Greater Manchester. It lies along the A6033 Keighley to Littleborough road in the Walsden Valley, a branch of the Upper Calder Valley, and is 2 miles south of Todmorden and 4 miles north of Littleborough.