# List of OHSAA swimming and diving champions

The Ohio High School Athletic Association (OHSAA) is the governing body of athletic programs for junior and senior high schools in the state of Ohio. It conducts state championship competitions in all the OHSAA-sanctioned sports.

## Champions

| Year | Boys D I | Boys D II | Girls D I | Girls D II |
| 2025 | Columbus St. Charles | Hunting Valley University School | Upper Arlington | Shaker Heights Hathaway Brown |
| 2024 | Cincinnati St. Xavier | Hunting Valley University School | Upper Arlington | Shaker Heights Hathaway Brown |
| 2023 | Cincinnati St. Xavier | Hunting Valley University School | Dublin Jerome | Shaker Heights Hathaway Brown |
| 2022 | Beavercreek | Hunting Valley University School | New Albany | Gates Mills Hawken |
| 2021 | Cincinnati St. Xavier | Gates Mills Hawken | New Albany | Gates Mills Hawken |
| 2020 | Cincinnati St. Xavier | Cincinnati Indian Hill | Dublin Coffman | Gates Mills Hawken |
| 2019 | Cincinnati St. Xavier | Hunting Valley University School | Mason | Gates Mills Hawken |
| 2018 | Cincinnati St. Xavier | Hunting Valley University School | Mason | Gates Mills Hawken |
| 2017 | Cincinnati St. Xavier | Gates Mills Hawken | Upper Arlington | Gates Mills Hawken |
| 2016 | Cincinnati St. Xavier | Cincinnati Seven Hills | Upper Arlington | Gates Mills Hawken |
| 2015 | Cincinnati St. Xavier | Cincinnati Seven Hills | Upper Arlington | Gates Mills Hawken |
| 2014 | Cincinnati St. Xavier | Dayton Oakwood | Cincinnati Ursuline Academy | Gates Mills Hawken |
| 2013 | Cincinnati St. Xavier | Dayton Oakwood | Cincinnati Ursuline Academy | Gates Mills Hawken |
| 2012 | Cincinnati St. Xavier | Hunting Valley University School | Upper Arlington | Gates Mills Hawken |
| 2011 | Cincinnati St. Xavier | Hunting Valley University School | Upper Arlington | Gates Mills Hawken |
| 2010 | Cincinnati St. Xavier | Hunting Valley University School | Upper Arlington | Gates Mills Hawken |
| 2009 | Cincinnati St. Xavier | Hunting Valley University School | Upper Arlington | Gates Mills Hawken |
| 2008 | Columbus St. Charles | | Upper Arlington | Gates Mills Hawken |
| 2007 | Cincinnati St. Xavier | | Upper Arlington | Gates Mills Hawken |
| 2006 | Cincinnati St. Xavier | | Upper Arlington | Gates Mills Hawken |
| 2005 | Cincinnati St. Xavier | | Upper Arlington | Gates Mills Hawken |
| 2004 | Cincinnati St. Xavier | | Centerville | Gates Mills Hawken |
| 2003 | Cincinnati St. Xavier | | Upper Arlington | Gates Mills Hawken |
| 2002 | Cincinnati St. Xavier | | Cincinnati Ursuline Academy | Gates Mills Hawken |
| 2001 | Cincinnati St. Xavier | | Cincinnati Ursuline Academy | Gates Mills Hawken |
| 2000 | Cincinnati St. Xavier | | Cincinnati Ursuline Academy | Gates Mills Hawken |
| 1999 | Cincinnati St. Xavier | | Gates Mills Hawken |
| 1998 | Toledo St. Francis De Sales | | Cincinnati Ursuline Academy |
| 1997 | Cincinnati St. Xavier | | Gates Mills Hawken |
| 1996 | Toledo St. Francis De Sales | | Gates Mills Hawken |
| 1995 | Cincinnati St. Xavier | | Cincinnati St. Ursula Academy |
| 1994 | Cincinnati St. Xavier | | Cincinnati St. Ursula Academy |
| 1993 | Cincinnati St. Xavier | | Cincinnati St. Ursula Academy |
| 1992 | Cincinnati St. Xavier | | Cincinnati Sycamore |
| 1991 | Cincinnati St. Xavier | | Cincinnati Ursuline Academy |
| 1990 | Cincinnati St. Xavier | | Gates Mills Hawken |
| 1989 | Gates Mills Hawken | | Thomas Worthington |
| 1988 | Gates Mills Hawken | | Gates Mills Hawken |
| 1987 | Upper Arlington | | Gates Mills Hawken |
| 1986 | Upper Arlington | | Gates Mills Hawken |
| 1985 | Upper Arlington | | Gates Mills Hawken |
| 1984 | Cincinnati St. Xavier | | Gates Mills Hawken |
| 1983 | Akron Firestone | | Toledo St. Ursula Academy |
| 1982 | Akron Firestone | | GlenOak & Cincinnati Oak Hills * |
| 1981 | Cincinnati St. Xavier | | Thomas Worthington |
| 1980 | Cincinnati St. Xavier | | Thomas Worthington |
| 1979 | Cincinnati St. Xavier | | Cincinnati Finneytown |
| 1978 | Cincinnati St. Xavier | | Thomas Worthington |
| 1977 | Cincinnati St. Xavier | | Thomas Worthington |
| 1976 | Cincinnati St. Xavier |
| 1975 | Cincinnati St. Xavier |
| 1974 | Cincinnati St. Xavier |
| 1973 | Cincinnati St. Xavier |
| 1972 | Cincinnati St. Xavier |
| 1971 | Cincinnati St. Xavier |
| 1970 | Cincinnati St. Xavier |
| 1969 | Akron Firestone |
| 1968 | Toledo St. Francis De Sales |
| 1967 | Toledo St. Francis De Sales |
| 1966 | Akron Firestone |
| 1965 | Cleveland Heights |
| 1964 | Fairview Park Fairview |
| 1963 | Akron Buchtel |
| 1962 | Lakewood |
| 1961 | Canton McKinley |
| 1960 | Canton McKinley |
| 1959 | Canton McKinley |
| 1958 | Canton McKinley |
| 1957 | Canton McKinley |
| 1956 | Canton McKinley |
| 1955 | Cincinnati Walnut Hills |
| 1954 | Shaker Heights |
| 1953 | Fremont Ross |
| 1952 | Canton McKinley |
| 1951 | Canton McKinley |
| 1950 | Cincinnati Walnut Hills |
| 1949 | Canton McKinley |
| 1948 | Cleveland East Technical |
| 1947 | Cleveland East Technical |
| 1946 | Sandusky |
| 1945 | Canton McKinley |
| 1944 | Findlay |
| 1943 | Fremont Ross |
| 1942 | Fremont Ross |
| 1941 | Fremont Ross |
| 1940 | Canton McKinley |
| 1939 | Canton McKinley & Fremont Ross * |
| 1938 | Fremont Ross |
| 1937 | Canton McKinley |
| 1936 | Fremont Ross |
| 1935 | Cincinnati Western Hills |
| 1934 | Cleveland Heights |
| 1933 | Cleveland Heights |
| 1932 | Cleveland Heights |
| 1931 | Cincinnati YMCA Prep |
| 1930 | Cincinnati Hughes Center |
| 1929 | Lakewood |
| 1928 | Lakewood |
    * Tie