Dexter High School (DHS) is a public high school located in Scio Township, Michigan, with a Dexter postal address, serving grades 9-12. Abby Holland is the school's current interim principal. Dexter High School is one of only two schools in the United States with a dreadnaught as a mascot, the other being Lakeland Senior High School in Florida.
Dexter High School was originally located in the building which is now Creekside Intermediate School. When the population of students became too large for this building, the new Dexter High School was built in 2002 in its current location. In the fall of 2009, Dexter High School was used as a location for the 2010 film Trust.
Dexter High School offers 14 different AP courses and 24 IB courses. Dexter High School also houses more than 30 clubs for students to participate in. DHS also has musical departments including Band, Orchestra, and most recently, choir.
The Dexter High School National Ocean Science Bowl team took 2nd place nationally in 2015.
Dexter High School had a 4-year high school graduation rate of 99% as of 2020.
The Dexter Dreadnaughts compete in the SEC. The school colors are maroon, white, and gold. Dexter offers the following MHSAA sanctioned varsity sports: