St. Augustine Church, Catholic church in Tremé, New Orleans, US.

St. Augustine Church is a Catholic parish at Saint Claude Avenue and Governor Nicholls Street in the Faubourg Tremé, a few blocks from the French Quarter. It was designed by French architect J. N. B. de Pouilly. Inside, the original mid-nineteenth-century pews were rearranged by Father Jerome LeDoux so all face the celebrant. The main altar is centuries-old pink Italian marble beneath a skylight shaped as the Egyptian "eye of God"; ten oil paintings form the Stations of the Cross, and ten stained glass windows from France show five male saints on one side and five female saints on the other.

St. Augustine Parish was established in 1841, when free people of color organized and obtained permission from Bishop Antoine Blanc; the Ursuline Sisters donated the land on condition it be named for Augustine of Hippo. The church was dedicated on October 9, 1842. Before the dedication, the "War of the Pews" saw free people of color outbuy white residents and give side-aisle pews to enslaved blacks. After Hurricane Katrina, parishioners barricaded themselves in the rectory against closure; the archdiocese took the church off probation in March 2009.

The parish holds Jazz Masses where gospel singing meets the sounds of New Orleans brass bands and jazz musicians. These services draw both regular churchgoers and visitors who want to experience worship in a form that feels rooted in the neighborhood's musical life.

Visitors can attend regular masses or check ahead to find out if a Jazz Mass falls during their stay. The church sits in Treme, within easy walking distance of the French Quarter.

On the church grounds stands a monument to the Unknown Slave, made of large chains arranged in the shape of a cross. It marks the memory of those who died in slavery and were buried without names or records.