Theddlethorpe All Saints or West Theddlethorpe is a village and civil parish about 10 miles (16 km) from Louth, in the East Lindsey district, in the county of Lincolnshire, England. In 2011 the parish had a population of 165. The parish touches Gayton le Marsh, Great Carlton, Saltfleetby and Theddlethorpe St Helen. Theddlethorpe All Saints shares a parish council with Theddlethorpe St Helen.