St Mary Magdalene's Church, East Ham is a parish church in East Ham, east London, dedicated to St Mary Magdalene. Its nave, chancel and apse date to the first half of the 12th century and the tower probably to the early 13th century but partly rebuilt in the 16th century - it is claimed to be the oldest parish church still in weekly use in Greater London and is listed at Grade I.A recess containing a piscina was cut into the nave's south wall beside the chancel for a nave altar in the 13th century, faint traces of wall paintings from that century also survive on the apse. The roofs were altered in the early 17th century and in 1639 Sir Richard Heigham gave the present white marble font.