Catholic Church of the Most Holy Trinity, Augusta, Georgia

The Catholic Church of the Most Holy Trinity, on Green Street in downtown Augusta, Georgia, was constructed from 1857-1863. It is one of the oldest Catholic church buildings in Georgia.

The edifice was designed by J.R. Niernsee, who was also the architect of the South Carolina State Capitol in Columbia, South Carolina. The original church building, constructed in 1814, served as the Sisters of Mercy hospital and orphanage during the Yellow Fever epidemics of 1839 and 1854. It was again pressed into service as a hospital during the War for Southern Independence (1861-1865).

Father Abram Ryan (1838-1886), the "Poet-priest of the Confederacy," was pastor of the church during the WarBetween the States. He also founded and served as editor of The Banner of the South, a religious and political Catholic weekly.