A minor seminary or high school seminary is a secondary day or boarding school created for the specific purpose of enrolling teenage boys who have expressed interest in becoming Catholic priests. They are generally Catholic institutions, and designed to prepare boys both academically and spiritually for vocations to the priesthood and religious life. They emerged in cultures and societies where literacy was not universal, and the minor seminary was seen as a means to prepare younger boys in literacy for later entry into the major seminary.

The minor seminary is no longer very familiar in the developed world. The 1917 Code of Canon Law described the purpose of minor seminaries as: "to take care especially to protect from the contagion of the world, to train in piety, to imbue with the rudiments of literary studies, and to foster in them the seed of a divine vocation". Suitable boys were encouraged to graduate to a major seminary, where they would continue their tertiary studies for the priesthood.

The program of priestly formation of the USCCB refers to them as "high school seminaries" rather than minor seminaries.^[1]

Today, college seminaries, where philosophy is studied, are often called minor seminaries even though they are for those who have completed high school.^[2]

Currently Operating Minor Seminaries

Canada

• Seminary of Christ the King, (Mission, British Columbia)

East Timor

• Seminary of Our Lady of Fatima – minor seminary, located in Dare
• Seminary of SS Peter and Paul – major seminary, located in Fatumeta
• Good Shepherd Minor Seminary, Pala, India
• St Paul's Minor Seminary, Akalpur, Jammu

Ghana

• St Teresa's Minor Seminary^[3]

India

• St.Joseph Minor Seminary, Kalamassery – Minor Seminary for the Archdiocese of Verapoly, Kerala.
• St. Aloysius Seminary, Trivandrum – minor seminary for the Syro-Malankara Archeparchy of Trivandrum
• St. Agnes Minor Seminary, Cuddalore, Tamil Nadu
• Sacred Heart Minor Seminary, Thrikkakara, Kochi, Kerala - Minor seminary for the Archeparchy of Ernakulam- Angamaly

Indonesia

• Minor seminary of Saint Paul Palembang
• Peter Canisius Minor Seminary Mertoyudan
• Wacana Bhakti Minor Seminary

Pakistan

• St. Mary's Minor Seminary, Lahore
• Our Lady of Lourdes Minor Seminary, Islamabad–Rawalpindi, founded in 1995
• St. Pius X Minor Seminary – Karachi, founded in 1958
• St. Thomas the Apostle Minor Seminary, Faisalabad, founded in 1981

Philippines

• St. Augustine Minor Seminary – minor seminary of Iba, Zambales, Luzon covering Olongapo City and Zambales Province
• San Jacinto Seminary (Penablanca, Cagayan) – minor Seminary of the Archdiocese of Tuguegarao
• Diocesan Seminary of the Heart of Jesus (San Fernando La Union) – minor seminary
• Immaculate Conception Minor Seminary (Vigan, Ilocos Sur)
• St. Mary's Seminary (Laoag, Ilocos Norte) – minor seminary
• Immaculate Conception Minor Seminary (Guiguinto, Bulacan) – minor seminary of the Diocese of Malolos
• John Paul II Minor Seminary (Antipolo, Rizal) – high school seminary of the Diocese of Antipolo
• Oblates of St. Joseph Minor Seminary (San Jose, Batangas) – high school seminary
• Our Lady of Guadalupe Minor Seminary (Makati) – high school seminary of the Archdiocese of Manila
• Our Lady of Mount Carmel Seminary (Sariaya, Quezon) – minor seminary, Diocese of Lucena
• Pope John XXIII Seminary (Cebu City) – minor seminary of the Archdiocese of Cebu
• Pope Paul VI Minor Seminary (Maasin City, Southern Leyte)
• Saint Francis de Sales Minor Seminary (Lipa City, Batangas) – minor (high school) seminary of the Archdiocese of Lipa
• Holy Rosary Minor Seminary (Naga City, Camarines Sur) Archdiocese of Caceres
• St. Gregory the Great Seminary (Panal, Tabaco City) – minor Seminary for the Diocese of Legazpi
• Our Lady of Peñafrancia Seminary Sorsogon City), Diocese of Sorsogon
• St. Anthony High School Seminary (Kinamaligan, Masbate City) Under the supervision of the Diocese of Masbate
• Sto. Nino Seminary (Numancia, Aklan) – minor and college
• St. Pius X Seminary (Lawaan, Roxas City, Capiz) – minor seminary of the Archdiocese of Capiz
• Saint Vincent Ferrer Seminary – (Jaro, Iloilo City) – minor Seminary of the Archdiocese of Jaro
• Seminario de San Jose (Puerto Princesa City, Palawan) – minor and major seminary
• Seminario de Jesús Nazareno (Borongan City, Eastern Samar) – minor seminary of the Diocese of Borongan

Poland

• Minor Seminary of the Archdiocese of Częstochowa – high school seminary of the Archdiocese of Częstochowa
• Minor Seminary of the Diocese of Płock – minor seminary of the Diocese of Płock

United States

The following minor seminaries operate in the USA today.

• Blessed Jose Sanchez del Rio Minor Seminary (Mankato, Minnesota), high school seminary run by the Institute of the Incarnate Word; opened in 2008.
• Sacred Heart Apostolic School (Rolling Prairie, Indiana) run by the Legionaries of Christ, opened in 2005
• St. Lawrence High School Seminary (Mount Calvary, Wisconsin) run by the Capuchin Friars, opened in 1860
• St. Joseph Seminary (Rathdrum, Idaho)[2] (Sedevacantist)
• Servants of the Holy Family (Colorado Springs, Colorado)

Uganda

• Bukalasa Minor Seminary
• Christ the King Seminary, Kisubi,
• St. Joseph's Seminary, Nyenga – minor seminary
• Mubende Seminary – in Nandele and Nyenga; minor seminary
• Nadiket seminary – for the dioceses of Kotido and Moroto
• Saint Charles seminary – minor seminary
• Saints Joseph's and Gabriel's Junior Seminary Nswanjere – located in Nswanjere, Mpigi District.
• St. Pius X Seminary – Nagongera – Located in Tororo district; West Budama County; Junior and Minor Seminary
• St. Paul's Seminary – Rushoroza – in Kabale for Kabale Diocese; minor seminary
• Kitabi Seminary in Bushenyi for Mbarara Arch diocese; minor seminary
• Sacred Heart Mission for the Brothers of Divine Mercy; Missionary preparation
• Sacred Heart Seminary Lacor – Gulu archdiocese
• St Peter's Seminary-Madera) – in Soroti for Soroti Diocese; minor seminary

Vietnam

• Sacred Heart Seminary of Thai Binh – Minor Seminary of the Diocese of Thái Bình
• Saint Nicolas Seminary of Phan Thiet – Minor Seminary of the Diocese of Phan Thiết