On a white horizontal rectangle arched convexly at top and bottom and edged with a 1/8 inch (.32 cm) blue border, a horizontal blue wavy bar bearing a silver gray dolphin garnished white on its ventral side, enbowed. Attached above a silver gray scroll edged with a 1/8 inch (.32 cm) blue border inscribed "PACIFIC" in blue letters and attached below a silver gray scroll edged with a 1/8 inch (.32 cm) blue border inscribed "HIGH SCHOOL" in blue letters.
Blue, white and gray are the school colors. The dolphin is the school mascot. The wavy bar alludes to the Pacific Ocean, and reflects the school's namesake.
The shoulder sleeve insignia was approved on 13 May 1998.