St. Augustine Church is a Catholic parish in New Orleans. Established by free people of color, who also bought pews for slaves, it is said to be the oldest Black Catholic parish in the United States, established in 1841. It was one of the first 26 sites designated on the state's Louisiana African American Heritage Trail. The property on which St. Augustine stands was once part of the . It is now one of two Catholic parishes in the Faubourg Tremé. The church is located on Saint Claude Avenue at Governor Nicholls Street, a few blocks from North Rampart Street and the French Quarter.