Clifton Grammar Junior and Senior School (CGJSS) is a private coeducational school located in Karachi, Pakistan. It was founded in 1982 by Mrs. Rehana Saeed, a renowned educationist, with the aim of providing quality education to the youth of the nation.

The school is affiliated with the Cambridge Assessment International Education (CAIE) and offers a range of educational programs from Kindergarten to Year 13 (A-Levels).

The school's curriculum is designed to promote intellectual, physical, emotional, and social development. CGJSS also offers a variety of extracurricular activities, including sports, arts, and clubs, to help students develop their talents and interests.

CGJSS is committed to provide its students with a holistic education that goes beyond academics. CGJSS is a highly regarded school in Pakistan and has a strong academic reputation.