The Congregation of the Holy Spirit (Latin: Congregatio Sancti Spiritus; abbreviation: CSSp), in full the Congregation of the Holy Spirit under the protection of the Immaculate Heart of the Virgin Mary (Latin: Congregatio Sancti Spiritus sub tutela Immaculati Cordis Beatissimae Virginis Mariae) is a male religious congregation of the Catholic Church.

A congregation is a large gathering of people, often for the purpose of worship.. Congregation may also refer to: . Church (congregation), a Christian organization meeting in a particular place for worship Congregation (Roman Curia), an administrative body of the Catholic Church Congregation for Bishops; Congregation for the Causes of Saints; Sacred Congregation of Rites