Hairul Azreen Idris (born 23 April 1988) is a former Malaysian actor and film director. He is best known for starring in the action films PASKAL, Polis Evo 2, WIRA and MALBATT: Misi Bakara.

Hairul Azreen was born and raised in Kuala Lumpur, Malaysia, and is the son of Idris Ali and Habsah Desa. He is the last child of four siblings. Hairul began to practice Taekwondo, receiving his black belt as well as former athletes in 2004 Sukma Games event for Selangor contingents.

On June 8, 2015, Hairul married actress, TV host and blogger Hanis Zalikha. The couple have two children, Yusuf Iskandar^[1][2] and Alisa Aisyah.^[3]

On August 21, 2023, Hairul announced his retirement from acting after 15 years in the acting world. He made the announcement during the 3 Pagi Era segment and was witnessed by the radio presenters Radin and Azad Jasmin and guest presenters Linda Onn and Halim Othman.

The purpose of retiring from the world of acting is because he wants to focus on his family and business, even the last two films, namely MALBATT: Misi Bakara and The Original Gangster, and he hopes that both films will be his best memories.^[4]