Here are lists of schools which only admit boys, in the United States
Arkansas Brophy College Preparatory, Phoenix (9-12)
Arkansas Catholic High School for Boys, Little Rock (9-12) Subiaco Academy, Subiaco (7-12)
California Jesuit High School, Carmichael (9-12) St. Augustine High School, San Diego (9-12)
Los Angeles area Boys Academic Leadership Academy, Westmont (6-12) Cathedral High School , Los Angeles (9-12) Crespi Carmelite High School, Los Angeles (9-12) Damien High School, La Verne (9-12) Don Bosco Technical Institute, Rosemead (9-12) Loyola High School, Los Angeles (9-12) Salesian High School, Los Angeles (9-12) Saint Francis High School, La Cañada Flintridge (9-12) Servite High School, Anaheim (9-12) St. John Bosco High School, Bellflower (9-12) St. Michael's Preparatory School (Silverado) Verbum Dei High School, Los Angeles (9-12) YULA Boys High School, Los Angeles (9-12)
San Francisco/Bay area Bellarmine College Preparatory, San Jose (9-12) Cathedral School for Boys, San Francisco (K-8) De La Salle High School, Concord (9-12) Junípero Serra High School, San Mateo (9-12) Stuart Hall High School, San Francisco (9-12) Town School for Boys, San Francisco (K-8)
Former Archbishop Riordan High School, San Francisco (became co-ed in 2020) St. Michael's Preparatory School, Silverado (1961-2020)
Connecticut Avon Old Farms School, Avon (9-12) Brunswick School, Greenwich (PK-12) Fairfield College Preparatory School, Fairfield (9-12) Fairfield Country Day School, Fairfield (K-9) Salisbury School, Salisbury (9-12) South Kent School, South Kent (9-12) Xavier High School, Middletown (9-12)
Former Notre Dame High School, West Haven became co-ed in 2025
Delaware Wilmington St. Edmond's Academy (PK-8) Salesianum School (9-12)
District of Columbia (Washington, D.C.) Gonzaga College High School (9-12) St. Anselm's Abbey School (6-12) St. Albans School (4-12)
Florida Jesuit High School, Tampa (9-12)
Miami area Belen Jesuit Preparatory School, Tamiami (6-12) Christopher Columbus High School, Westchester CDP (9-12) Klurman Elementary School/Rohr Middle School/Dr. Abe Chames High School, North Miami Beach (1-12)YTCTE Yeshiva Toras Chaim Toras Emes. Accessed 2025-12-31. Menachem Mendel Elementary/Middle School/Klurman Yeshiva High School, Miami (PK-12) Boys Division Lubavitch Educational Center. Accessed 2025-12-31. Mechina of South Florida, Miami Beach (7-12)Home Mechina South Florida. Accessed 2025-12-31. Young Men's Preparatory Academy, Miami (6-12)
Georgia The B.E.S.T. Academy, Atlanta (6-12) Benedictine Military School, Savannah (9-12)
Pinecrest Academy (Cumming) puts boys and girls in separate classes.
Former Ivy Preparatory Young Men's Leadership Academy, Atlanta (closed 2016)
Hawaii St. Andrew's Prep, Honolulu (K-5) Saint Louis School, Honolulu (K-12)
Illinois Brother Rice High School, Chicago (9-12) Fasman Yeshiva High School, Skokie (9-12) Leo Catholic High School, Chicago (9-12) Marmion Academy, Aurora (9-12) Mount Carmel High School, Chicago (9-12) Northridge Preparatory School, Niles (6-12) Notre Dame College Prep, Niles (9-12) St. Patrick High School, Chicago (9-12) St. Rita of Cascia High School, Chicago (9-12) Urban Prep Charter Academy for Young Men - Bronzville Campus, Chicago (9-12) Urban Prep Charter Academy for Young Men - Englewood Campus, Chicago (9-12) Urban Prep Charter Academy for Young Men - West Campus, Chicago (9-12)
Former Cathedral High School, Belleville merged with the Academy of Notre dame to become Althoff Catholic High School in 1964 Chaddock Boys' School, Quincy Hales Franciscan High School, Chicago (closed 2019) Holy Cross High School, River Grove (1961-2004) Holy Trinity High School, Chicago (became co-ed) Joliet Catholic High School, Joliet merged with St. Francis Academy to become Joliet Catholic Academy in 1990 Loyola Academy, Wilmette merged with Saint Louise de Marillac High School in 1994 Roncalli High School, Aurora merged with Madonna Catholic High School to become Aurora Central Catholic High School in 1968 St. Ignatius College Prep, Chicago (became co-ed in 1979) St. Joseph High School, Westchester (became co-ed in 2005, closed in 2021) St. Laurence High School, Burbank (became co-ed in 2017) St. Mel High School, Chicago merged with Providence High School to become Providence St. Mel School in 1969 St. Procopius College and Academy, Lisle merged with Sacred Heart Academy to become Benet Academy in 1967 Weber High School, Chicago (1890-1999)
Indiana Sacred Heart Apostolic School, Rolling Prairie (8-12)
Former Gibault School for Boys, Terre Haute
Kentucky Covington Catholic High School, Park Hills (9-12)
Louisville DeSales High School (9-12) St. Xavier High School (9-12) Trinity High School (9-12)
Former Bishop David High School, Louisville merged with Angela Merici High School to become Holy Cross High School in 1984 Flaget High School, Louisville merged with Loretto High School in 1973 and closed in 1974 Newport Catholic High School, Newport merged with Our Lady of Providence Academy to become Newport Central Catholic High School in 1983
Louisiana Berchmans Academy of the Sacred Heart, Grand Coteau (PK-12) Catholic High School, Baton Rouge (8-12)
New Orleans area Archbishop Rummel High School, Metairie (8-12) Archbishop Shaw High School, Marrero (8-12) Brother Martin High School, New Orleans (8-12) Christian Brothers School, New Orleans (co-ed PK-4, all-boys 5-7) Holy Cross School, New Orleans (PK-12) Jesuit High School, New Orleans (8-12) St. Augustine High School, New Orleans (8-12) St. Paul's School, Covington (8-12)
Former Alcee Fortier High School, New Orleans became co-ed and then closed in 2006 De La Salle High School, New Orleans became co-ed in 1992 East Jefferson High School, Metairie became co-ed in 1980 Miller-McCoy Academy, New Orleans (2008-2015)
Maine Former Farmington Academy, Farmington (1812-1863)
Maryland Baltimore area Archbishop Curley High School, Baltimore (9-12) Boys' Latin School of Maryland, Baltimore (K-12) Calvert Hall College High School, Towson (9-12) Gilman School, Baltimore (PK-12) Loyola Blakefield, Towson (6-12) Mount Saint Joseph High School, Baltimore (9-12) St. Paul's School for Boys, Brooklandville (co-ed PK-5, all-boys 5-12)
Washington, DC area The Avalon School, Wheaton (K-12) DeMatha Catholic High School, Hyattsville (9-12) Georgetown Preparatory School, Rockville (9-12) The Heights School, Potomac (3-12) Landon School, Bethesda (3-12) Mater Dei School, Bethesda (1-8)
Former Bishop McNamara High School, Forestville CDP became co-ed in 1992 Cardinal Gibbons School, Baltimore (1962-2010) Eshkol Academy, Columbia (2002-2004) St. Timothy's Hall, Catonsville (1847-1864) Tome School for Boys, North East (became co-ed)
Massachusetts Belmont Hill School, Belmont (7-12) Boston College High School, Boston (7-12) Catholic Memorial School, West Roxbury (7-12) Eaglebrook School, Deerfield (6-9) Roxbury Latin School, West Roxbury (7-12) Saint John's High School, Shrewsbury (7-12) St. John's Preparatory School, Danvers (6-12) St. Paul's Choir School, Cambridge (5-8) Saint Sebastian's School, Needham (7-12) Xaverian Brothers High School, Westwood (7-12)
Former Boston Latin School, Boston became co-ed in 1972 Central Catholic High School, Lawrence became co-ed in 1996 Don Bosco Technical High School, Boston (1946-1998) The English High School, Boston became co-ed in 1972 Lenox School for Boys, Lenox (1926-1972) Linden Hill School, Northfield (1961-2012) The Newman School, Boston became co-ed Round Hill School, Northampton (1823-1834)
Michigan Brother Rice High School, Bloomfield Township (9-12) De La Salle Collegiate High School, Warren (9-12) Detroit Catholic Central High School, Novi (9-12) Douglass Academy for Young Men, Detroit (9-12) Loyola High School, Detroit (9-12) University of Detroit Jesuit High School and Academy, Detroit (7-12)
Former Austin Catholic Preparatory School, Detroit (1951-1978) Notre Dame High School, Harper Woods (1954-2005) St. Augustine Seminary High School, Holland (1949-1977) St. Mary's Preparatory, Orchard Lake Village became co-ed in 2020
Minnesota Saint Thomas Academy, Mendota Heights (6-12)
Mississippi Saint Stanislaus College, Bay St. Louis (7-12)
Missouri Missouri Military Academy, Mexico (7-12) Rockhurst High School, Kansas City (9-12) St. Louis Area Chaminade College Preparatory School, Creve Coeur (6-12) Christian Brothers College High School, Town and Country (9-12) De Smet Jesuit High School, Creve Coeur (9-12) St. John Vianney High School, Kirkwood (9-12) Saint Louis Priory School, Creve Coeur (6-12) St. Louis University High School, St. Louis (9-12) St. Mary's High School, St. Louis (9-12)
Nebraska Creighton Preparatory School, Omaha (9-12) Mount Michael Benedictine School, Elkhorn (9-12)
Former Father Flanagan's Boys' Home, Boys Town
New Hampshire Cardigan Mountain School, Canaan (6-9)
Former Immaculate Conception Apostolic School, Center Harbor (1982-2015) Pinkerton Academy, Derry became co-ed in 1817
New Jersey Christian Brothers Academy, Lincroft (9-12) Princeton Academy of the Sacred Heart, Princeton (PK-8) St. Augustine Preparatory School, Richland (8-12)
New York City area Bergen Catholic High School, Oradell (9-12) Delbarton School, Morristown (7-12) Don Bosco Preparatory High School, Ramsey (9-12) Eagle Academy for Young Men of Newark, Newark (5-12) Oratory Preparatory School, Summit (7-12) Rav Teitz Mesivta Academy, Elizabeth (6-12) St. Benedict's Preparatory School, Newark (K-12) St. Joseph High School, Metuchen (9-12) Saint Joseph Regional High School, Montvale (9-12) St. Peter's Preparatory School, Jersey City (9-12) Seton Hall Preparatory School, West Orange (9-12) Torah Academy of Bergen County, Teaneck (9-12)
Former American Boychoir School, Princeton (1937-2017) Hudson Catholic Regional High School, Jersey City became co-ed in 2009 Neumann Preparatory School, Wayne (1965-1990) Thomas Jefferson High School merged with Battin High School to become Elizabeth High School in 1977
New York New York City Bronx Cardinal Hayes High School (9-12) Eagle Academy for Young Men of the Bronx (6-12) Fordham Preparatory School (9-12) Mount Saint Michael Academy (6-12) Boys Prep Bronx Elementary (K-8) St. Raymond High School for Boys (9-12)
Brooklyn Eagle Academy at Ocean Hill (6-12) Eagle Academy at Ocean Hill Eagle Academy. Accessed 2025-12-31. Mesivta Nesivos Hatalmud (8-12) Uncommon Excellence Boys Elementary/Middle School (K-8) United Lubavitcher YeshivaHome United Lubavitcher Yeshiva. Accessed 2026-01-01. Yeshiva Derech HaTorah (K-12) Yeshiva Rabbi Chaim Berlin (PK-12) Yeshiva Tiferes Yisroel (PK-12)Home Yeshiva Tiferes Yisroel. Accessed 2026-01-01. Yeshiva Torah Temimah (PK-12) Yeshiva Toras Emes Kaminetz (K-12) Yeshivat Shaare Torah Boys High School (9-12)
Manhattan Browning School (K-12) Buckley School (K-9) Collegiate School (K-12) Eagle Academy for Young Men of Harlem (6-12)Eagle Academy of Harlem Eagle Academy. Accessed 2025-12-31. La Salle Academy (9-12) Mesivtha Tifereth Jerusalem (9-12) Regis High School (9-12) St. Bernard's School (K-9) Saint David's School, PK-8 Saint Thomas Choir School (3-8) Xavier High School (9-12) Yeshiva University High School for Boys (9-12)
Queens Cathedral Preparatory School and Seminary (9-12) Eagle Academy for Young Men of Southeast Queens (6-12) Eagle Academy of Southeast Queens Eagle Academy. Accessed 2025-12-31. Mesivta Yesodei Yeshurun Yeshiva Darchei Torah (PK-12) Yeshiva of Far Rockaway (9-12) Yeshiva Shaar HaTorah (9-12)
Staten Island Eagle Academy for Young Men of Staten Island (6-12) Eagle Academy of Staten Island Eagle Academy. Accessed 2025-12-31. Monsignor Farrell High School (9-12)