The 15th Selangor state election were held on 12 August 2023 to elect the State Assembly members of the 15th Selangor State Legislative Assembly, the legislature of the Malaysian state of Selangor.

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.