Coldwater High School is a public high school located in Coldwater, Ohio. It is part of Coldwater Exempted Village Schools.

Athletic teams are known as the Cavaliers. The school competes in the Ohio High School Athletic Association as a member of the Midwest Athletic Conference. They have captured over 100 league championships in various MAC-sanctioned sports since 1973. The Cavaliers have a total of 29 team State Championships in various OHSAA sports. The Coldwater football team is in 2nd place for the most state titles (7) by a public school since the playoff system began in 1972. That is 7 behind fellow MAC member Marion Local who has 15 state football titles.

• Football - 2005, 2007, 2012, 2013, 2014, 2015, 2020, 2024
• Baseball - 1983, 1984, 1987, 1990, 1992, 2014, 2019
• Boys Bowling - 2007, 2012, 2015, 2020
• Girls Basketball – 1990, 1992
• Girls Bowling - 2012, 2013, 2015, 2017, 2021
• Girls Track and Field – 1994, 1995, 1996
• Girls Volleyball - 2024

• Football - 1998, 2000, 2009, 2010, 2011, 2016, 2021
• Baseball - 1977, 1991, 2004, 2018
• Boys Basketball - 1999
• Boys Bowling - 2016, 2022, 2023
• Girls Bowling - 2014, 2018, 2020
• Girls Softball - 1996
• Girls Volleyball - 2017, 2022

• Girls Golf - 2021

• Keith Wenning, professional football player in the National Football League (NFL)
• Ross Homan, former linebacker for the Ohio State Buckeyes and NFL draftee
• Steve Vagedes, former Arena Football League player
• Trent Dues, baseball state champion and head baseball coach for Butler High School

• District Website
• Official Website of the Midwest Athletic Conference

40°28′55″N 84°37′48″W / 40.482°N 84.630°W / 40.482; -84.630