Crestline High School

Crestline High School is a public high school in Crestline, Ohio, United States. It is the only high school in the Crestline Exempted Village School District.

Ohio High School Athletic Association State Championships

 * Girls' softball – 2004

Athletic league affiliations
2021-
 * League of Six Nations: 1933-1940
 * Independent: 1940-1944
 * Northern Ohio League: 1944-1954
 * Independent: 1954-1961
 * Johnny Appleseed Conference: 1961-1977
 * Mid-Ohio Conference: 1977-1990
 * North Central Conference: 1990-2014
 * Northern 10 Athletic Conference: 2014-2015
 * Mid-Buckeye Conference: 2015-
 * Northwest Central Conference (football only):

Notable alumni

 * Gates Brown, former MLB player (Detroit Tigers)
 * Jack Harbaugh, football coach and former player