St Mary's Centre, formerly the Church of St Mary-on-the-Hill, stands at the top of St Mary's Hill, Chester, Cheshire, England, near Chester Castle. It is recorded in the National Heritage List for England as a designated Grade I listed building. The church stands at the top of a narrow winding lane which leads down to the River Dee, and it is adjacent to Chester Castle. In the 1970s the church was converted into an educational centre. It is currently available for use as a concert and exhibition venue and the Chester Music Society hold many concerts there throughout the year.