[1] The chosen mascot for the school was the Cougars, and the colors (black and gold) were modeled from the then two-time Super Bowl champions, the Pittsburgh Steelers.
[8] Manassas Park High School's mascot is a cougar and its sports teams currently play in the Northwestern District and AA Region II.
[9] Manassas Park offers competitive cheer, cross country, football, golf, indoor and outdoor track, girls' volleyball, basketball, wrestling, swimming, baseball, soccer, and softball.
[12] In 2004, the Manassas Park Cougars' football team won Virginia A State Championship defeating Powell Valley High School with a score of 20-13.
[17] In 2000, the Cougars softball team won a state championship defeating Patrick Henry High School - Glade Spring.
[18] In 2012, the Cougars track team won a state championship, defeating Radford High School by one point.
The Cougars repeated this again from 2004 to 2006, winning three straight team state championships, defeating Parry McCluer, Strasburg, and Rural Retreat High School.