This is a list of high school athletic conferences in the Southwest Region of Ohio, as defined by the OHSAA. Because the names of localities and their corresponding high schools do not always match and because there is often a possibility of ambiguity with respect to either the name of a locality or the name of a high school, the following table gives both in every case, with the locality name first, in plain type, and the high school name second in boldface type. The school's team nickname is given last.
Central Buckeye Conference
Kenton Trail Division Bellefontaine Chieftains (1974-) Plain City Jonathan Alder Pioneers (2017-) Springfield Kenton Ridge Cougars (1977-) London Red Raiders (2017-) Springfield Shawnee Braves (1974-) New Carlisle Tecumseh Arrows (1991-)
Mad River Division Bellefontaine Benjamin Logan Raiders (2001-) St. Paris Graham Falcons (2001-) Lewistown Indian Lake Lakers (2001-) Richwood North Union Wildcats (2017-) Springfield Northwestern Warriors (1982-) Urbana Hillclimbers (1974-)
Former members Springfield Greenon Knights (1974-2017, to Ohio Heritage Conference) London Red Raiders (1974–78, to Central Buckeye League) Springfield Northeastern Jets (1974-2001, to Ohio Heritage Conference) Casstown Miami East Vikings (2001–06, to Cross County Conference) Riverside Stebbins Indians (2007-2016, to Greater Western Ohio) Tipp City Tippecanoe Red Devils (2001-2016, to Greater Western Ohio)
Cincinnati Hills League
Cincinnati Deer Park Wildcats (1985-) Cincinnati Finneytown Wildcats (1985-) Cincinnati Indian Hill Braves (1985-) Cincinnati Madeira Mustangs (1985-) Cincinnati Mariemont Warriors (1985-) Reading Blue Devils (1985-) North Bend Taylor Yellow Jackets (1989-) Cincinnati Wyoming Cowboys (1985-)
Former members Cincinnati Academy of Physical Education Crusaders (1985-1994, closed) Loveland Tigers (1985-1995, to Southern Buckeye Athletic Conference)
Cincinnati Metro Athletic Conference
Blue Division Cincinnati College Prep Lions (2019-) Cincinnati DePaul Cristo Rey Bruins (No Football, 2024-) Cincinnati Gamble Montessori Gators (2019-) Cincinnati Oyler Madhatters (No Football, 2019-) Cincinnati Creative & Performing Arts Raiders (No Football, 2019-) Cincinnati Shroder Paideia Jaguars (2007-) Cincinnati Spencer Wolfpack (No Football, 2021-)
Red Division Cincinnati Aiken Falcons (2007-) Cincinnati Hughes Center Big Red (2007-) Cincinnati Taft Senators (2007-) Cincinnati Western Hills Mustangs (2007-) Cincinnati Withrow Tigers (2020-) Cincinnati Woodward Bulldogs (2007-)
Future member Cincinnati Mount Healthy Fighting Owls (2027-)
Dayton City League Dayton high schools were part of the Southwest Ohio Public League from 2002 to 2007, and played football in the same conference beginning in 2015.
Dayton Belmont Bison (1956-2002, 2007-) Dayton Dunbar Wolverines (1931-2002, 2007-) Dayton Thurgood Marshall Cougars (2007-) Dayton Meadowdale Lions (1961-2002, 2007-) Dayton Ponitz Career Technology Center Golden Panthers (2009-) Dayton Stivers School for the Arts Tigers (1908-1976, 1996-2002, 2007-) (Football currently an independent)
Former members (all closed) Dayton Kiser Panthers (1908-1982) Dayton Steele Lions (1908-1940) Dayton Patterson Beavers (1922-2009) Dayton Roosevelt Roughriders (1923-1975) Dayton Colonel White Cougars (1929-2007) Dayton Fairview Bulldogs (1933-1982) Dayton Roth Falcons (1959-1982) Dayton Wilbur Wright Pilots (1940-1982)
Eastern Cincinnati Conference
The Eastern Cincinnati Conference comprises teams mostly from larger schools in eastern Hamilton County and nearby counties in Greater Cincinnati.
Cincinnati Anderson Raptors (2012-) Kings Mills Kings Knights (2012-) Lebanon Warriors (2020-) Morrow Little Miami Panthers (2020-) Loveland Tigers (2012-) Milford Eagles (2012-) Cincinnati Turpin Spartans (2012-) Cincinnati Walnut Hills Eagles (2012-) Batavia West Clermont Wolves (2017-) Forest Park Winton Woods Warriors (2020-)
Former Members Cincinnati Glen Este Trojans (2012-2017, consolidated into West Clermont) Cincinnati Withrow Tigers (2014–2020, to Cincinnati Metro Athletic Conference)
Greater Catholic League The GCL was restructured in 2013, as the Girls' Greater Catholic League was merged into the conference. The GGCL co-ed schools would merge into the same divisions as their GCL counterparts, while the single-sex schools were placed into the South Division."Archdiocese of Cincinnati announces new Greater Catholic League." Cincinnati.com. 2013-08-12. Retrieved 2013-08-17.
(Co-Ed) Kettering Archbishop Alter Knights (1990–present) Dayton Carroll Patriots (2006–present) Dayton Chaminade-Julienne Eagles (1990–present) Middletown Bishop Fenwick Falcons (2006–present) Hamilton Stephen T. Badin Rams (1990–present) Cincinnati Archbishop McNicholas Rockets (1990–present)
South (Boys) Cincinnati Elder Panthers (1931–present) Cincinnati La Salle Lancers (1962–present) Cincinnati Archbishop Moeller Crusaders (1962–present) Cincinnati St. Xavier Bombers (1931–present)
South (Girls) Cincinnati Mercy McAuley Wolves (2018) Cincinnati Mount Notre Dame Cougars (formerly Mountaineers) (2013–present) Cincinnati Seton Saints (2013–present) Cincinnati St. Ursula Bulldogs (2013–present) Cincinnati Ursuline Academy Lions (formerly Hornets) (2013–present)
Former members Hamilton Catholic Rams (1949–1966) Cincinnati McAuley Mohawks (2013–2018, consolidated into Mercy McAuley) Cincinnati Mother of Mercy Bobcats (2013–2018, consolidated into Mercy McAuley) Newport Catholic (KY) Thoroughbreds (1949–1970) Cincinnati St. Rita Lions (1962–?) Cincinnati Our Lady of Angels (19??-1984) Cincinnati Purcell Marian Cavaliers (1931–2020, to Miami Valley Conference) St. Bernard Roger Bacon Spartans (1931–2020, to Miami Valley Conference)
Greater Miami Conference
Cincinnati Colerain Cardinals (1997-) Fairfield Indians (1966-) Hamilton Big Blue (1980-) Liberty Township Lakota East Thunderhawks (1997-) West Chester Lakota West Firebirds (1997-) Mason Comets (2007-) Middletown Middies (1966-) Cincinnati Oak Hills Highlanders (2000-) Sharonville Princeton Vikings (1966-) Montgomery Sycamore Aviators (1989-)
Former schools Hamilton Garfield Griffins (1966–80, consolidated into Hamilton) Miamisburg Vikings (1966–67) Hamilton Taft Tigers (1966–80, consolidated into Hamilton) West Chester Lakota Thunderbirds (1980–97, split into Lakota East & Lakota West) Lima Spartans (1980-2000, Independent) Milford Eagles (1989-2007, to Fort Ancient Valley Conference)
Greater Western Ohio Conference The GWOC was formed in 2001 as a merger of the Western Ohio League and Greater Miami Valley Conference.
There were 2 divisions prior to the 2020-2021 season. In 2020-2021, the divisions were done away with.
Beavercreek Beavers (2001-) Centerville Elks (2001-) Kettering Fairmont Firebirds (2001-) Miamisburg Vikings (2006-) Clayton Northmont Thunderbolts (2001-) Springboro Panthers (2006-) Springfield Wildcats (2008-) Huber Heights Wayne Warriors (2001-)
Divisional Alignments 2001-06 2006-16 2016-19 2019-20 National American East West Central North South East West North South East West Beavercreek Butler Beavercreek Butler Fairborn Beavercreek Lebanon Butler Fairborn Beavercreek Lebanon Centerville Greenville (2001–05) Centerville Greenville (2010–16) Lebanon Centerville Miamisburg Greenville Stebbins Centerville Miamisburg Fairmont Northmont Fairmont Piqua Miamisburg Fairmont Northmont Piqua Trotwood Fairmont Northmont Springfield North Piqua Northmont Sidney Springboro Springfield Springboro Sidney West Carrollton Springfield Springboro Springfield South Sidney Springfield North (2006–08) Trotwood-Madison West Carrollton (2010–16) Wayne Tippecanoe Xenia Wayne Trotwood-Madison Wayne Trotwood-Madison Springfield South/Springfield Troy Xenia Troy Xenia Troy Wayne
Former Schools Vandalia Butler Aviators (2001-2019, to Miami Valley League) Greenville Green Wave (2001–2005, 2010-2019, to Miami Valley League) Piqua Indians (2001-2019, to Miami Valley League) Sidney Yellow Jackets (2001-2019, to Miami Valley League) Springfield North Panthers (2001–08, consolidated into Springfield) Springfield South Wildcats (2001–08, consolidated into Springfield) Troy Trojans (2001-2019, to Miami Valley League) Xenia Buccaneers (2001-2019, to Miami Valley League) Fairborn Skyhawks (2006-2019, to Miami Valley League) West Carrollton Pirates (2010-2019, to Miami Valley League) Riverside Stebbins Indians (2016-2019, to Miami Valley League) Tipp City Tippecanoe Red Devils (2016-2019, to Miami Valley League) Lebanon Warriors (2006–20, to Eastern Cincinnati Conference) Trotwood-Madison Rams (2001–20, Independent)
Independents Fayetteville-Perry Rockets (Football only) Dayton Stivers School for the Arts Tigers (Football only) Trotwood-Madison Rams
Metro Buckeye Conference
Springfield Emmanuel Christian Academy Lions (no football, 2009-) Xenia Legacy Christian Academy Knights (no football, 1998-) Dayton Miami Valley School Rams (no football, 1999-) Franklin Middletown Christian Eagles (no football, 1998-) Yellow Springs Bulldogs (no football, 1998-)
Former members Fairfield Cincinnati Christian Cougars (1998-2005, to Miami Valley Conference) Springboro Ridgeville Christian Lions (2000–07, school closed) Sidney Lehman Catholic Cavaliers (football only, left in 2012) Fort Loramie Redskins (football only, left in 2012) Troy Christian Eagles (all sports except football, 1999-2021, to Three Rivers Conference) Dayton Jefferson Township Broncos (1998-2009, 2017–2022) Miamisburg Dayton Christian Warriors (football in Cincinnati Metro Athletic Conference, 2019–2025)
Miami Valley Conference
Scarlet Division Cincinnati Cincinnati Hills Christian Academy Eagles (2003-) Cincinnati Clark Montessori Cougars (2004-) Cincinnati North College Hill Trojans (1984–87, 1992-) Norwood Indians (2017-) Cincinnati Purcell Marian Cavaliers (Football only 2019-2020, Full member 2021-) St. Bernard Roger Bacon Spartans (Football only, 2019-2020, Full member 2021-) Cincinnati Summit Country Day Silver Knights (1984-)
Grey Division Hamilton Cincinnati Christian Cougars (no football, 2003-) Cincinnati Cincinnati Country Day Nighthawks (1984-) Lockland Panthers (1984-) Cincinnati Miami Valley Christian Academy Lions (2017-) Hamilton New Miami Vikings (1984-) Cincinnati Seven Hills Stingers (no football, 1984-) Cincinnati St. Bernard-Elmwood Place Titans (1984-)
Football Divisions Scarlet Division Cincinnati Hills Christian Academy Purcell Marian Roger Bacon Summit Country Day
Gray Division Cincinnati Country Day Clark Montessori North College Hill Norwood
Buckeye Division Lockland Miami Valley Christian Academy New Miami St. Bernard
Former members Cincinnati College Prep Lions (Football only, 2017-2020) Cincinnati Landmark Christian Eagles (1984-2004, school closed) Batavia Bulldogs (1985–89) Miamisburg Dayton Christian Warriors (Football only, 2013-2018)
Miami Valley League The Miami Valley League (MVL) began competition during the 1926–27 school year, when the MVL held its first league championship in track. Football and basketball began with the 1927–28 school year. The league operated through the 1974–75 school year, when the three long-time members of the league formed the Miami Central Conference with similar-sized schools. The Miami Valley League resumed competition during the 2019-2020 school year as part of a breakoff from the Greater Western Ohio Conference (GWOC )
Miami Division Vandalia Butler Aviators (2019-) Greenville Green Wave (1926–72, 2019-) Piqua Indians (1926–75, 2019-) Tipp City Tippecanoe Red Devils (1926–27, 2019-) Troy Trojans (1926–68, 2019-) Valley Division Fairborn Skyhawks (1954–64, 2019-) Sidney Yellow Jackets (1926–75, 2019-) Riverside Stebbins Indians (2019-) West Carrollton Pirates (2019-)