Sekinchan is a state constituency in Selangor, Malaysia, that has been represented in the Selangor State Legislative Assembly since 1974. It has been represented by Member of the Selangor State Executive Council (EXCO) Ng Suee Lim of Pakatan Harapan (PH) since 2015, Pakatan Rakyat (PR) from 2008 to 2015, Democratic Action Party (DAP) from 2004 to 2008.
The state constituency was created in the 1974 redistribution and is represented by a single member in the Selangor State Legislative Assembly, chosen under the first-past-the-post voting system.
According to the federal gazette issued on 30 March 2018, the Sekinchan constituency is divided into 11 polling districts.