This is a list of former high school athletic conferences in the Southwest Region of Ohio, as designated by the Ohio High School Athletic Association. If a conference had members that span multiple regions, the conference is placed in the article of the region most of its former members hail from. 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.
Brown County League The BCL was one of the local small-school county leagues in Southwest Ohio. Consolidation reduced the number of teams to five by 1967, and in 1970 these five joined with the Adams and Highland county leagues to form the Southern Hills Athletic League. Aberdeen Pirates (1930s–53, consolidated into Ripley-Union-Lewis-Huntington) Decatur Bulldogs (1930s–62, consolidated into Eastern Brown) Fayetteville-Perry Rockets (1930s–70, to Southern Hills) Georgetown G-Men (1930s–70, to Southern Hills) Hamersville Hornets (1930s–67, consolidated into Western Brown) Higginsport Wildcats (1930s–53, consolidated into Ripley-Union-Lewis-Huntington) Mount Orab Mounties (1930s–67, consolidated into Western Brown) Ripley-Union-Lewis-Huntington Bluejays (1930s–70, Ripley before 1953, to Southern Hills) Russellville Ramblers (1930s–62, consolidated into Eastern Brown) Sardinia Zephyrs (1930s–62, consolidated into Eastern Brown) Sardinia Eastern Brown Warriors (1962–70, to Southern Hills) Mount Orab Western Brown Broncos (1967–70, to Southern Hills)
Butler County League Fairfield Indians (<1925-53, to Mid-Miami League)1 Darrtown Hanover Eagles (<1925-56, consolidated into Talawanda) Monroe Lemon-Monroe Hornets (<1925-51, to Little 6 League and Mid-Miami League)2 Wetherington Liberty Lions (<1925-59, consolidated into Liberty-Union) Oxford McGuffey Green Wave (<1925-56, consolidated into Talawanda) Okeana Morgan Township Mustangs (<1925-53, Okeana before 1942, consolidated into Ross) Reily Bluebirds (<1925-65, to Southwestern Ohio Conference) Ross Rams (<1925-65, to SWOL)3, 4 Seven Mile Panthers (<1925-65, to SOC)3, 4 Shandon Spartans (<1925-42, consolidated into Morgan Township) Somerville Eagles (<1925-44, consolidated into Stewart) Oxford Stewart Tigers (<1925-56, consolidated into Talawanda) Trenton Trojans (<1925-65, to SOC) West Chester Liberty-Union Thunderbirds (<1925-59, Union before 1959, to SOC) Jacksonburg Wayne Warriors (<1925-58, consolidated into Seven Mile) New Miami Vikings (1954–65, to SOC)5 Oxford Talawanda Braves (1956–59, to SOC)3
Concurrent with MML 1951-53. Concurrent with Little 6 League 1939-51. Concurrent with Little Southwestern League 1956-59. Concurrent with Southwestern Ohio Conference 1959-65. Concurrent with SOC 1960-65.
Cincinnati Public League/Interscholastic Athletic Association of Cincinnati The Interscholastic Athletic Association was founded March 23, 1896, and continued for several years with both public and private high schools until 1931, when it rebranded itself as the Public High School League. Now encompassing solely the public high schools in Cincinnati, the league lasted until 1985, when reshuffling of city and suburban Cincinnati high schools took place, which led to the formation of the Cincinnati Hills League, Eastern Metro Conference, Metro County Conference, and Western Metro Conference. Cincinnati Courter Tech Cavaliers (1896–1973, was Cincinnati Tech until 1923, then Central Tech until 1960, school closed) Cincinnati Franklin Preparatory Falcons (1896–1926, school burned down and closed) Cincinnati Hughes Big Red (1896–1985, to Western Metro) Cincinnati Walnut Hills Eagles (1896–1985, to Metro County) Cincinnati Woodward Bulldogs (1896–85, to Western Metro) Covington (KY) Central Bulldogs (1898–1911, dropped Ohio competition) Cincinnati Ohio Military Cadets (1898–1910, to Independents, school closed 1951) Cincinnati St. Xavier Conquistadors (1898–1931, to Greater Catholic) Cincinnati Withrow Tigers (1919–85, to Eastern Metro) Cincinnati East Tech Engineers (1923–53, school closed) Cincinnati Western Hills Mustangs (1928–85, to Metro County) Cincinnati Aiken Falcons (1962–85, to Metro County) Cincinnati Taft Senators (1965–85, to Metro County) Cincinnati Academy of Physical Education (CAPE) Crusaders (1980–85, to Cincinnati Hills)
Clinton County League This small-school county league is another that hosted members from outside their borders. In this case, Harveysburg from Warren County joined a few years before the conference ended, as the school would merge with three Clinton County schools to become Clinton-Massie. The school would actually be based in Harveysburg until a new school was built near Clarksville, in Clinton County. Blanchester was not included in the 1959–60 standings, due to growing to a AA-sized school by annexing Jefferson, but were allowed back into league play the following season. Blanchester and Clinton-Massie would concurrently play in the CCL and Fort Ancient Valley Conference for the 1964–65 school year, after which the other two CCL schools consolidated into East Clinton, who would join the FAVC nine years later.
Ogden Adams Eagles (pre–1933–63, consolidated into Clinton Massie) Blanchester Wildcats (pre–1931–65, to Fort Ancient Valley Conference) Clarksville Indians (pre–1931–63, consolidated into Clinton-Massie) Midland Jefferson Blue Jays (pre–1931–59, consolidated into Blanchester) Kingman Bulldogs (pre–1931–63, consolidated into Clinton-Massie) Martinsville Rockets (pre–1931–63, consolidated into Wilmington) New Vienna Tigers (pre–1931–63, consolidated into New Kenton) Port William Bulldogs (pre–1931–63, consolidated into Wilmington) Sabina Golden Eagles (pre–1931–65, consolidated into East Clinton) Lees Creek Simon Kenton Tigers (was Wayne before 1953, pre–1931–63, consolidated into New Kenton) Harveysburg Tigers (from Warren County, 1960–63, consolidated into Clinton-Massie) Harveysburg/Clarksville Clinton-Massie Falcons (1963–65, to Fort Ancient Valley Conference) New Vienna New Kenton Tigers (1963–65, consolidated into East Clinton)
Cross County Conference The conference was originally the Darke County League, began in 1923. The League renamed itself after most of the Wayne Trace League merged with the DCL in 1978. The conference ended in 2021, as the schools split into the Three Rivers Conference and the Western Ohio Athletic Conference.
Ansonia Tigers (1923-2021 (Football, 1978-2021), to WOAC) Arcanum Trojans (1923-2021, to WOAC) Tipp City Bethel Bees (1978-2021, to TRC) Bradford Railroaders (1936-2021), to WOAC) Covington Buccaneers (1991-2021, to TRC) Arcanum Franklin Monroe Jets (no football) (1952-2021, to WOAC) Fort Loramie Redskins (Football only, 2017-2021) Casstown Miami East Vikings (2006-2021, to TRC) Union City Mississinawa Valley Blackhawks (1959-2021, to WOAC) New Paris National Trail Blazers (1978-2021, to WOAC) Pleasant Hill Newton Indians (no football) (1959-2021, to WOAC) Lewisburg Tri-County North Panthers (1978-2021, Twin Valley North before 1983, to WOAC) New Madison Tri-Village Patriots (1973-2021, to WOAC) West Alexandria Twin Valley South Panthers (1978-2021, to WOAC)
Former members Union City Eastside Eagles (1923–59, consolidated into Mississinawa Valley) Painter Creek Franklin Township Falcons (1923–52, consolidated into Franklin Monroe) Gettysburg Cardinals (1923-73?, consolidated into Greenville) Hollansburg Rams (1923–55, consolidated into Westmont) Hunchberger Corners Jackson Blue Jays (1923–59, consolidated into Mississinawa Valley) Pitsburg Monroe Township Pirates (1923–52, consolidated into Franklin Monroe) New Madison Mohawks (1923–73, consolidated into Tri-Village) Palestine Eagles (1923–55, consolidated into Westmont) Versailles Tigers (1923–41, 1951–73) Hollansburg Westmont Wildcats (1955–73, consolidated into Tri-Village) Camden Preble-Shawnee Arrows (1978–84) Anna Rockets (football only, 2001–05)
Cross County League One of the short-lived conferences resulting from realignment in the Cincinnati area, the league merged into the Queen City Conference superconference in 1989.
Batavia Amelia Barons (1985–89, to Queen City) Forest Park Chargers (1985–89, to Queen City) Cincinnati McNicholas Rockets (1985–89, to Queen City) Norwood Indians (1985–89, to Queen City) Cincinnati Northwest Knights (1985–89, to Queen City) Cincinnati Walnut Hills Eagles (1985–89, to Queen City)
Darby Valley League The DVL was formed in 1956, as the Madison County League was reduced through consolidation from nine schools to four over a two-year period, forcing the schools to seek other schools to compete with. Growing from its five initial schools, the conference grew to 11 schools by 1963, but never achieved any sense of stability, as schools joined and left for other conferences throughout its existence. The conference folded in 1977, as five of its members left for other leagues at the same time.
Ashville-Harrison Broncos1 (1956–62, consolidated into Teays Valley) Jamestown Greeneview Rams2 (1956–77, to Kenton Trace Conference) Newport Madison-South Lions3 (1956–73, consolidated into Madison-Plains) North Lewisburg Triad Cardinals4 (1956–74, to West Central Ohio League) West Jefferson Roughriders3 (1956–63, to Franklin County League) Plain City Jonathan Alder Pioneers6 (1957–77, to Central Buckeye League) Mount Sterling The Plains Blue Devils (1957–73, consolidated into Madison-Plains) Cedarville Indians (1961–77, to Kenton Trace Conference) West Liberty-Salem Tigers (1961–67, to Logan County League) Yellow Springs Bulldogs (1961–77) Ashville Teays Valley Vikings (1962–64, to South Suburban League) Mechanicsburg Indians (1963–74, to West Central Ohio League) South Charleston Southeastern Trojans (1963–77, to Kenton Trace Conference) Xenia Woodrow Wilson Cadets (1972–77) London Madison-Plains Golden Eagles5 (1974–77, to South Central Ohio League) Dayton Jefferson Broncos (1975–77)
Concurrent with Pickaway County League 1956–61. Concurrent with Greene County League 1956–61. Concurrent with Madison County League 1956–57. Concurrent with Champaign County League 1956–61. Concurrent with South Central Ohio League 1974–75. Concurrent with Central Buckeye League 1976–77)
Eastern Hills League This conference began as Milford and New Richmond, kicked out of the Clermont County League after becoming exempt schools, joined with neighbors from far eastern Hamilton County. The league ended in 1985, as major realignment took place in the Cincinnati area.
Indian Hill Braves (1957–85, to Cincinnati Hills League) Loveland Tigers (1957–85, to Cincinnati Hills League) Madeira Mustangs (1957–85, to Cincinnati Hills League) Mariemont Warriors (1957–85, to Cincinnati Hills League) Milford Eagles (1957–85, to Eastern Metro Conference) New Richmond Lions (1957–69, to Clermont County League) Deer Park Wildcats (1963–85, to Cincinnati Hills League) Montgomery Sycamore Aviators (1965–85, to Eastern Metro Conference) Glen Este Trojans (1967–85, to Eastern Metro Conference)
Eastern Metro Conference One of the short-lived conferences resulting from realignment in the Cincinnati area, the league merged into the Queen City Conference superconference in 1989.
Cincinnati Anderson Redskins (1985–89, to Queen City) Cincinnati Glen Este Trojans (1985–89, to Queen City) Milford Eagles (1985–89, to Greater Miami) Cincinnati Sycamore Aviators (1985–89, to Greater Miami) Cincinnati Turpin Spartans (1985–89, to Queen City) Cincinnati Withrow Tigers (1985–89, to Queen City)
Fort Ancient Valley Conference