The Priory Institute, is part of the St. Mary's Dominican Priory on the grounds of the old Tallaght Castle,[2] Dublin 24, Ireland and provides, certificate, diploma, and degree programmes in theology and philosophy.

As a delegated authority of Quality and Qualifications Ireland (QQI), The Institute of Technology, Tallaght validate all the academic programmes at The Priory institute.

[4] QQI is a public body, which is accountable to the Irish government and the Oireachtas and is the national accreditation board for higher education qualifications in Ireland.

The institute's certificates, diplomas and degrees are aligned with the National Framework of Qualifications NFQ structure.

[citation needed] A new Regional Technical College, which became the Institute of Technology Tallaght, was opened in 1992 beside St. Mary's Priory, in 1993 The Dominican order transferred 20 acres of the priory's land to the Department of Education for the RTC's development.