St John the Evangelist's Church, Greenock, is located in Union Street, Greenock, Inverclyde, Scotland. It is an active Anglican church in the Scottish Episcopal Church.[1] It has been designated by Historic Scotland as a Category B listed building.[2] The church was built in 1878, and designed by the Lancaster architects Paley and Austin.[3] The architectural style is Gothic Revival. Its plan consists of a four-bay nave with a clerestory, a chancel with a chapel, and a tower at the southeast corner. The tower has a slate-covered pyramidal roof. Inside the church the arcades are carried on alternate octagonal and circular piers.[2]