Lahore Grammar School, or LGS, is a group of private academic preparatory institutions based in the city of Lahore, Punjab, Pakistan. The system was established in 1979 at its 55 Main Gulberg campus. The institution provides education to boys and girls until A Levels. The LGS College for Women offers a degree programme in arts and sciences as well as a bachelors in computers. LGS has branches in Islamabad, Karachi, Quetta, Peshawar, Multan, Faisalabad, Sialkot, Gujranwala, Gujrat, and Wah Cantt.
LGS provides preschool education, primary education, secondary education and preparation for international General Certificate of Education (GCE). Some branches also provide preparation for local Secondary School Certificate.