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Capital High School is a four-year public high school in the western United States, located in Helena, Montana. The building was originally built in the 1960s as a Catholic high school, but closed following the graduation of the class of 1969. The property was purchased by the Helena Public School District and it became its second high school 51 years ago in 1973.

Helena Capital High School
Address
100 Valley Drive Helena , Montana U.S.
Information
Type	Public high school
Established	1973, 51 years ago
School district	Helena P.S.D.
Principal	Brett Zanto
Teaching staff	85.10 (FTE)
Grades	9–12
Enrollment	1,367 (2023–2024)
Student to teacher ratio	16.06
Color(s)	Brown & Gold
Athletics	MHSA AA Basketball (boys & girls) Football (boys) Golf (boys & girls) Softball (girls) Soccer (boys & girls) Speech & Debate Swimming (boys & girls) Tennis (boys & girls) Track & field (boys & girls) Volleyball (girls) Wrestling (boys & girls)
Mascot	Bruin
Nickname	CHS
Rival	Helena Bengals
Accreditation	Montana Office of Public Instruction
Yearbook	The Capital Dome
Elevation	3,880 ft (1,185 m) AMSL
Website	chs.helenaschools.org

• Stuart Long (1963–2014), Class of 1981, boxer-turned-Catholic priest; inspiration for the 2022 film Father Stu
• Dava Newman (born 1964), Class of 1982, engineer and NASA administrator
• Bobby Petrino (born 1961), Class of 1979, college football head coach
• Paul Petrino (born 1967), Class of 1985, college football head coach

• Official website