Saint Thomas Choir School is a church-affiliated boarding choir school in Manhattan, New York. It was founded in 1919 and is supported by the nearby Saint Thomas Church, an Episcopal church continuing the Anglican tradition of all-male choral ensembles. Other than Westminster Abbey Choir School in the U.K. and Escolania de Montserrat in Spain,it is the only Choir School which exclusively educates boy trebles of the choir and where all boys are required to board at the school.