Herndon Hornet Team Championships
District, Regional, and State Championships
Baseball
- District: 1979, 1995, 1996, 1998, 2002
- Region: 1995, 1996, 2022
Boys Basketball
- District: 1973, 1976, 1994, 1995, 1996, 2004, 2006, 2007, 2011, 2013, 2014
- Region: 2006
- State: 1951
Girls Basketball
- District: 1978, 1979, 1981, 1982, 1987, 2017
Cheer
- District: 2004, 2010, 2011, 2012
- Region: 2004, 2010
- State: 2012
Boys Cross Country
- District: 1985, 1986, 1987, 1988, 1989, 1990, 2017, 2018, 2019
Girls Cross Country
- District: 1988, 1989, 2003
- Region: 2002, 2003, 2007
- State: 2003
Field Hockey
- District: 1979, 2014
Football
- District: 1985, 1990
Golf
- District: 1973, 1976, 1978
- Region: 1981
Boys Gymnastics
- District: 1974, 1976, 1977, 1978,1979, 1985, 1986, 1987, 1990, 1991, 1998, 1999, 2000, 2001, 2002
- Region: 1975, 1976, 1977, 1986, 1987, 1988, 1990, 1991, 2000
- State: 1977, 1990, 1991, 2000
Girls Gymnastics
- District: 1977, 1984, 1988, 1992, 1993, 1994, 1995, 1996, 2007, 2008
- Region: 1994, 2007, 2008
Boys Soccer
- District: 1983, 1986, 1992, 1996, 1998, 2008, 2012, 2023
- Region: 1986, 1996, 1997, 2023
- State: 1986
Girls Soccer
- District: 1989, 1992
Boys Varsity Swim and Dive
- District: 1974, 1975, 1988
Girls Varsity Swim and Dive
- District: 2000
BoysTennis
- District: 1980, 1982, 1983, 1984
- Region: 1980
Girls Tennis
- District: 1978, 1981
Boys Indoor Track and Field
- District: 1983, 1986, 1987, 1988
Girls Indoor Track and Field
- District: 1989
Boys Outdoor Track and Field
- District: 1976, 1988, 1989
- State: 1965, 1966, 1967
Girls Outdoor Track and Field
- District: 1977, 1990, 2009
Wrestling
- District: 1982, 1991, 1992, 1993, 1994, 1997, 1998, 2000, 2002, 2003
- Region: 1996, 1997, 1998, 2002
Girls Varsity Volleyball
- Region: 2021