St Mary's Church is a Church in Wales parish church in the village of Glyntaff, near Pontypridd, South Wales. It is the oldest Anglican church in the Pontypridd urban area. Formerly an independent parish, it became part of the Parish of Glyntaff, Rhydyfelin and The Graig, and is now part of the Parish of Pontypridd. It is a member of Pontypridd Christians Together. The church has a long tradition of following an Anglo-Catholic style of worship, extending at least as far back as the 1920s.