The Old St James's Church is a former church in the village of Upton, Somerset, England, of which only the tower remains, overlooking Wimbleball Lake.

The tower is recorded in the National Heritage List for England as a designated Grade II* listed building,[1] and is in the care of the Churches Conservation Trust.

[2] The church was declared redundant on 4 November 1971, and was vested in the Trust on 24 May 1973.

[4] The only parts of the 14th-century church which remain are from the lowest courses of the nave and chancel, and the tower,[2] which has three stages and was unbuttressed,[1] however a buttress was added to the south east corner in the 19th century.

[4] The bells from the church have been reused elsewhere including one at the St John the Baptist in Pitney and one in Green Point, New South Wales, Australia.