Charles J. Colgan Sr. High School is the 12th high school located in Manassas, Virginia, United States. It opened in August 2016 and is named for American politician and businessman Charles J. Colgan.

Colgan High School serves a portion of the middle of Prince William County. The community consists of business, professional, U.S. government and military residents. Colgan High School has also been designated as the Center for the Fine and Performing Arts.

The principal of Colgan High School is Dr. Timothy Healey. Before being appointed the inaugural principal, he was an assistant superintendent and the Principal of Osbourn Park High School.

In the 2022–2023 school year, Colgan's student body was:

• 19.0% Black/African American
• 20.4% Hispanic
• 43.2% White
• 8.7% Asian
• 8.1% two or more races
• .4% Native American/Alaskan
• .2% Hawaiian/Pacific Islander

Currently, Colgan High School is the CFPA (Center for Fine and Performing Arts). The CFPA consists of nine programs:

• Dance
• Choir
• Orchestra
• Creative Writing
• Band
• Theater
• Music Technology
• Piano
• Visual Arts

Each program requires an audition/portfolio, depending on the concentration area.

In 2021, the Colgan girls' volleyball team won the class 6A state championship.

Colgan High School is built based on a design model that focuses on natural light, open courtyard spaces, and current technology. Colgan High School has several design features that make it unique and tailored for students in the arts:

• Largest auditorium in Prince William County Schools, with professional sound and lighting
• Purposely designed black box theater to allow for small performances and support student creativity
• Outdoor amphitheater with covered stage
• Large contemporary dance studio
• Hydraulic lift for orchestra pit allowing for effective use of stage (including stage extension)
• Large art rooms with new equipment and supplies overlooking a beautiful courtyard
• Dedicated space for band, orchestra, and chorus – including Wenger© soundproof practice rooms

Colgan High School also includes the School Division's Aquatics Center. While the Aquatics Center is physically attached to the school, it serves the entire school division. The Aquatics Center is used by all students in Prince William County Schools through swim & dive team practices and meets, and instructional purposes for water safety, lifeguard certification, and other related curricula.

• Quinn, musician

• Official website

38°39′14″N 77°26′18″W / 38.6540°N 77.4382°W / 38.6540; -77.4382