Saint Fin Barre's Cathedral is a Gothic Revival three-spire Church of Ireland cathedral in the city of Cork. It is located on the south bank of the River Lee and dedicated to Finbarr of Cork, patron saint of the city. Formerly the sole cathedral of the Diocese of Cork, it is now one of three co-cathedrals in the United Dioceses of Cork, Cloyne and Ross in the ecclesiastical province of Dublin. Christian use of the site dates back 7th-century AD when, according to local lore, Finbarr of Cork founded a monastery. The original building survived until the 12th century, when it either fell into disuse or was destroyed during the Norman invasion of Ireland. Around 1536, during the Protestant Reformation, the cathedral became part of the established church, later known as the Church of Ireland. The previous building was constructed in the 1730s, but was widely regarded as plain and featureless.

Cork is the second largest city in the Republic of Ireland, third largest on the island of Ireland, the county town of County Cork and largest city in the province of Munster. At the 2022 census, it had a population of 224,004.