St Mary of the Angels Roman Catholic Church (Welsh: Llanfair Yr Angylion) is located in Canton, Cardiff.

[4] The church was designed by architect Frederick Walters and built by W. T. Morgan.

[1] In January 1941, the sacristies and St Ann's Chapel in the church were destroyed by an air raid to be rebuilt 10 years later.

[1] In 1991 the church came under the care of the Archdiocese of Cardiff after many years under the Benedictine community.

[7] In Charlotte Church's Confessional Song, one line is "Poor old Father Delaney", referring to the St Mary's parish priest.