Preparatory School Islamabad (PSI) is a private coeducational English medium school located in Islamabad, Pakistan. It was founded in 1998 and offers education from kindergarten to grade 12.

The school is affiliated with the Cambridge Assessment International Education (CAIE) and offers the Cambridge International Primary Programme (CIPP), Cambridge Lower Secondary Programme (CLSP), and Cambridge International General Certificate of Secondary Education (IGCSE) and Advanced Level (A-Level) examinations.

PSI offers a comprehensive academic program that covers a wide range of subjects, including English, mathematics, science, social studies, and languages.

PSI is known for its high academic standards. The school's curriculum is challenging and prepares students for success in college and beyond.

PSI is committed to provide students with a well-rounded education. The school offers a variety of extracurricular activities and programs to help students develop their social and emotional skills.