Johan bin Abdul Aziz is a Malaysian politician who has served as Member of the Selangor State Legislative Assembly (MLA) for Dusun Tua since August 2023. He served as the MLA for Semenyih from May 2008 to May 2018. He is a member of the United Malays National Organisation (UMNO), a component party of the Barisan Nasional (BN) coalition. He has served as the Deputy State Chairman of BN and UMNO Selangor and a Member of the UMNO Supreme Council since November 2022.

The Selangor State Legislative Assembly is the unicameral state legislature of the Malaysian state of Selangor. The State Assembly is composed of 56 members representing single-member constituencies throughout the state. Elections are held no more than five years apart, and by Malaysian political convention, are conducted simultaneously with elections to the federal parliament and other state assemblies.