This is a list of high school athletic conferences in Ohio, separated by Ohio High School Athletic Association (OHSAA) region. Some conferences have schools in multiple regions, and will be listed in all applicable regions. However, the conference information is on the region page where the most schools are classified in.
The Sandusky Bay Conference is a high school athletic conference in the Sandusky Bay area of north central Ohio. It is affiliated with the Ohio High School Athletic Association.
The North Central Conference was an OHSAA athletic league whose final remaining members were located in northwest and north-central Ohio. The league's last day of operation was June 30, 2014.
The Blanchard Valley Conference is an Ohio High School Athletic Association affiliated athletic league located in Hancock, Putnam, and Wood Counties in northwest Ohio. Its name derives from the Blanchard River, which runs through the area in which the schools are located. Findlay, which is part of the Northern Lakes League, and Cory-Rawson, which is a part of the Northwest Central Conference, are the only high schools in Hancock County that are a member of the Ohio High School Athletic Association that aren't part of the BVC.
The Midland Athletic League was an OHSAA athletic league located in northwest Ohio that was formed in 1985. Mark King was the last commissioner. The league folded following the 2013-14 school year as its members found new league homes. The last day of league operation was June 30, 2014.
The Northwest Central Conference is an OHSAA athletic league located in parts of northwest and western Ohio. The league came into existence in the 2001–2002 school year. The NWCC supports 10 league sports: Boys and Girls Cross Country, Boys Golf, Football, Volleyball, Boys and Girls Basketball, Baseball and Softball.
East Canton High School is a public high school in East Canton, Ohio. It is the only high school in the Osnaburg Local School District. Although the school's athletic teams have the mascot of the Hornets, the East Canton's girls' basketball team is nicknamed the Wizards. The East Canton boys cross country team has also been nicknamed the packmen due to their excellent pack running.
Barnesville High School is a public high school in Barnesville, Ohio. It is the only high school in the Barnesville Exempted Village School District. Athletic teams compete as the Barnesville Shamrocks in the Ohio High School Athletic Association as a member of the Ohio Valley Athletic Conference.
Edison High School is a public high school near Richmond, Ohio, United States. It is the only secondary school in the Edison Local School District, covering students from the villages of Amsterdam, Bergholz, Empire, Irondale, Richmond, and Stratton, as well as most unincorporated areas in northern Jefferson County. Athletic teams compete as the Edison Wildcats in the Ohio High School Athletic Association as a member of the Ohio Valley Athletic Conference.
Riverdale Local School is a public K–12 school located near Mount Blanchard in Delaware Township, Hancock County, Ohio, United States. The school system is the result of a consolidation of three school districts. The communities of Forest, Wharton and Mount Blanchard comprise the school district which consolidated in 1962. It is the only school in the Riverdale Local Schools district. Their building, opened in 2004, currently houses grades K-12, while the original high school building still stands on campus to act as a centralized office for records, a head start program as well as other school functions.
Fredericktown High School is a public high school in Fredericktown, Ohio. It is the only high school in the Fredericktown Local School District. The school's athletic teams are known as 'The Freddies', with school colors of red and gray.
Ridgedale Junior/Senior High School is a public high school in Morral, Ohio. It is the only high school in the Ridgedale Local School District. In 2022, the average class size was 45 students.
Woodmore High School is a public high school in Elmore, Ohio, United States. It is the only high school in the Woodmore Local School District, which also serves Woodville, Ohio. Athletic teams are known as the Wildcats with school colors of navy blue and gold. They were founding members of the Suburban Lakes League in 1971, but joined the Northern Buckeye Conference in 2011. Woodmore was established in 1968 with the consolidation of Woodville High School and Harris-Elmore High School, and the school name is a portmanteau of the two community names.
The Interstate Eight Conference is an athletic conference of Illinois high schools that are members of the Illinois High School Association (IHSA). The conference currently has six member schools throughout Northern Illinois that compete in 12 different sports.
The Mid-Ohio Athletic Conference is an OHSAA athletic league whose members are located in the Ohio counties of Crawford, Marion, and Richland. The league was established in the fall of 1990.
The Firelands Conference is an Ohio High School Athletic Association (OHSAA) athletic league located in north-central Ohio. The league was formed in the 1960–61 school year and is named for the Firelands area of the old Western Reserve, where most of the member schools reside. High schools in this conference are located in Ashland, Huron, and Richland counties. Some of the schools' district boundaries extend into the neighboring counties of Crawford, Erie, and Lorain. Most of the founding schools came from the defunct Huron-Erie League.
The Northern 10 Athletic Conference is an OHSAA athletic conference that is currently made up of eight schools from northern Ohio and began athletic competition in 2014.
The Sandusky River League was an OHSAA-sponsored league that began athletic play in the 2014-15 school year. The league sponsored football, cross country, volleyball, golf, basketball, wrestling, baseball, softball, and track & field. The following were the inaugural members:
This is a list of high school athletic conferences in the Northwest 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.
This is a list of former high school athletic conferences in the Northwest Region of Ohio, as designated by the OHSAA. 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.
