Communities using the Tridentine Mass

A list of priestly societies and religious institutes using a pre-1970 version of the Roman Missal some but not all are in communion with the Holy See. These groups are dedicated to preserving older liturgical rites of the Roman Catholic Mass. These groups are sometimes called Ecclesia Dei Communities, as they have been approved by or are seeking approval from the Pontifical Commission Ecclesia Dei.

Most of the following following groups use the pre-1970 Roman Missal, but some follow the proper Missal of the Dominican Rite or the Carmelite Rite.

Associations of men

• Priestly Fraternity of St. Peter
• Institute of Christ the King Sovereign Priest
• Franciscan Friars of the Immaculate
• Fraternite Notre Dame (canonically irregular)
• Institute of the Good Shepherd
• Personal Apostolic Administration of Saint John Mary Vianney
• Fraternity of St. Vincent Ferrer
• Institute of St. Philip Neri
• Benedictines - Clear Creek
• Benedictines - Fontgombault
• Benedictines - Gaussan
• Benedictines - Le Barroux
• Benedictines - Randol
• Benedictines - St. Pierre de Clairac
• Benedictines - Triors
• Militia Templi; The Poor Knights of Christ
• Religious Institute of the Holy Cross of Riaumont
• Canons Regular of the Mother of God [1]
• Canons Regular of the New Jerusalem
• Canons Regular of Saint John Cantius
• Monks of the Most Blessed Virgin Mary of Mount Carmel
• Slaves of the Immaculate Heart of Mary (Still River, Mass.)
• Society of Saint John [2]
• Society of Saint Pius X (canonically irregular)
• Servi Jesu et Mariae
• Sons of the Most Holy Redeemer, formerly called the Transalpine Redemptorists
• Mariawald Abbey, German Trappists

Associations of women

• Benedictines - Jouques
• Benedictines - Le Barroux
• Benedictines - Rosans
• Benedictines of Mary, Queen of Apostles
• Canonesses of the Mother of God
• Sisters of the Precious Blood - Schellenberg
• Sisters of the Precious Blood - St. Pelagiberg
• Sisters Adorers of the Royal Heart of Jesus Christ Sovereign Priest
• Discalced Carmelites - Valparaiso, Nebraska
• Dominicans of the Holy Ghost - Baffe
• Dominicans of the Holy Ghost - Draguignan
• Dominicans of the Holy Ghost - Nantes
• Dominicans of the Holy Ghost - Pontcalec
• Dominicans of the Holy Ghost - Saint Cloud
• Religious Victims of the Sacred Heart of Jesus
• Institute of Servants of the Queen of Apostles
• Oasis de Jesús Sacerdote [3]
• Slaves of the Immaculate Heart of Mary (Still River, Mass.)