St Columba's Church, Long Tower

St Columba's Church Long Tower is a Roman Catholic Church in the Diocese of Derry. It is located in the outside the city walls, down in the bogside, where the estuary of the Foyle used to run.

The present church is built on the site of Roman Catholic worship which goes back as far as the 12th century. The current Long Tower Church began life in 1783 in a much smaller scale than seen today. It is the site of the Cathedral of Tempull Mor. Father John Lynch, a parish priest in Derry started action to raise funds for building the Long Tower Church and he received finance not just from Roman Catholics but also Protestant people in Derry at the time. The church was opened in 1788.