The round houses on the Thames and Severn Canal are five former lengthsmen's cottages built along the canal between Chalford and Lechlade in Gloucestershire. Constructed in the 1790s when the canal was built, all but one of the round houses are Grade II listed and have been restored as private dwellings. The buildings have been described as "peculiar" and "a distinctive feature of the Thames and Severn Canal's architecture".