On a rectangle arched top and bottom, 2 3/8 inches (6.03 cm) in width by 3 1/2 inches (8.89 cm) in height overall, a field blazoned: Argent, a Trojan Warrior's head traversed, erased and detailed Azure, helmeted of the same and garnished of the first, all within a 1/8 inch (.32 cm) Blue border. Attached above the rectangle, a White scroll inscribed "NORTH HARDIN" in Blue letters edged with a 1/8 inch (.32 cm) Blue border. Attached below the rectangle, a White scroll inscribed "HIGH SCHOOL" in Blue letters edged with a 1/8 inch (.32 cm) Blue border.
Blue and white are the official school's colors. The Trojan is the school's mascot.
The shoulder sleeve insignia was authorized 27 January 2005. (TIOH Drawing Number A-10J-698)