Christ Church Cathedral, Waterford, Anglican cathedral in central Viking Triangle, Waterford, Ireland

Christ Church Cathedral, formally the Cathedral of the Holy Trinity, is a Georgian building of 1774 by local architect John Roberts, finished only around 1792, with a steeple added in 1783. It stands on the site of an 11th-century church and a Gothic cathedral of 1210, both replaced; inside are monuments by John van Nost the younger, including one to Susanna Mason (died 1752).

A church stood here from the 11th century; in 1170 it hosted the marriage of Richard de Clare (Strongbow) and Aoife Ní Diarmait. That building was replaced by a Gothic cathedral in 1210, which was demolished in 1773. The city corporation had urged the bishop to rebuild, and the local architect John Roberts supplied the design in 1774; the steeple followed in 1783 and the building was finished by at least 1792.

The cathedral holds the medieval vestments found in 1773 during demolition of the old building; Bishop Richard Chenevix gave them to his Catholic counterpart Peter Creagh. They are now in the Museum of Treasures in Waterford and the National Museum in Dublin. Monuments inside include John van Nost the younger's memorials to Susanna Mason (died 1752) and to Nicholas and John Fitzgerald (1770).

Visitors can enter and walk through the interior with straightforward access to all main areas. It helps to check opening times before your visit since the cathedral may have varying availability depending on services and season.

John Roberts designed both Waterford cathedrals, but the Anglican one was not finished until at least 1792, and its steeple was only raised in 1783. When the medieval cathedral was demolished in 1773, a set of medieval vestments was found and given by Bishop Richard Chenevix to his Catholic counterpart Peter Creagh; they are now in Waterford's Museum of Treasures and the National Museum in Dublin.