The Alumni Association of the Department of Applied Physics, PolyU. ( acronym: AAAPPU), was founded in 1996 with a broad aim of facilitating networking among fellow graduates and communication between graduates and the Department.

Graduates from all courses/programmes parented by the Department of Applied Physics ( and formerly the Department of Applied Science) shall be admitted to Ordinary Membership upon payment of the membership fee ($50, payable once only at the time of joining the Association). These courses/programmes include: HD in ASc , HC in AP, Lab Technician courses, HD in AP, BSc in Combined Studies ( with a component in Phy), BSc in Engineering Phy ( full-time and part-time), Postgraduate programmes ( Postgraduate Dip and MSc in Engineering Phy, MPhil, PhD).