St Mary the Virgin's Church, Week St Mary, also known as the Church of the Nativity of the Blessed Virgin Mary, is a Grade I listed parish church in the Church of England Diocese of Truro, in Week St Mary, Cornwall, England, UK.

Week St Mary has a 14th–15th century parish church dedicated to St Mary the Virgin and the tower contains a ring of six bells.

[1][2] The church was restored between 1878 and 1881 by James Piers St Aubyn.

The church is a Grade I listed building.

[3] The church is in a joint parish with The organ is by Bevington.