St. Aloysius Catholic Church is a Roman Catholic parish church at 19 I Street in the Near Northeast neighborhood of Washington, D. C. It is administered by the Jesuits since its founding and is named for St. Aloysius Gonzaga. It is often associated with Gonzaga College High School, to which it is physically connected. The church building is listed on the National Register of Historic Places. In 2012 the parish was closed and merged with Holy Redeemer church.