Datuk Dr. Haji Wan Junaidi Tuanku Jaafar (born 1 February 1946) is a Malaysian politician. He is the Minister of Natural Resources and Environment, and currently the Member of the Parliament of Malaysia for the Santubong constituency in Sarawak, representing the Parti Pesaka Bumiputera Bersatu (PBB) in the ruling Barisan Nasional coalition. Previously, he was a Deputy Speaker of the House of Representatives.