St Ann's Church is a redundant Anglican church in Warrington, Cheshire, England. It is recorded in the National Heritage List for England as a designated Grade II* listed building. The church was closed for worship in November 1995, and since 1996 has been used as an indoor climbing centre. From the mid-1960s to the mid-1980s the church was heated by steam from the then adjacent Tetley Walker's brewery. A new church, also dedicated to St Ann, was built on a different site half a mile away in 2000.

A redundant church, now referred to as a "closed church", is a church building that is no longer used for Christian worship. The term most frequently refers to former Anglican churches in the United Kingdom, but may also be used for disused churches in other countries. Redundant churches may be deconsecrated, but this is not always done.