Our Mother of Mercy Catholic Church is a Black Catholic church in Frenchtown, an area within the Fifth Ward of Houston. It was the second Black parish to be established in the city and the first established by Louisiana Creoles. It was also the first institution created by non-Anglophones in an African-American neighborhood in the city. It is a part of the Archdiocese of Galveston-Houston and its membership has included both Creole and non-Creole African Americans.