Thorp Arch is a small affluent village and civil parish near Wetherby, West Yorkshire, England. The village comes under the City of Leeds metropolitan borough. The village is set on the River Wharfe and has a primary school and public house. The village is in the LS23 Wetherby postcode area and has a Wetherby dialling code (01937). Historically the parish of Thorp Arch was not in any of the Ridings of Yorkshire but in the Ainsty, a separate division.