St Paul's Church is a redundant Anglican parish church in St Paul's Square, Preston, Lancashire, England. It is recorded in the National Heritage List for England as a designated Grade II listed building. It was a Commissioners' church, having received a grant towards its construction from the Church Building Commission.
The building also housed radio station Rock FM from 1981-2020.
St Paul's was built between 1823 and 1825, and was designed by Thomas Rickman and Henry Hutchinson. A grant of £6,221 (equivalent to £510,000 in 2019) was given towards its construction by the Church Building Commission. In 1882 a chancel was added to the church, and a baptistery was created within the church, by T. H. Myers. The church was declared redundant on 1 January 1979. In 1981 it was bought for £35,000 by Red Rose Radio who spent £780,000 to convert it into a radio station. The conversion was carried out by Sandy Brown Associates. Two radio stations, 97.4 Rock FM and Greatest Hits Lancashire, used to broadcast from the building until 2020.