Joseph Chieng Jin Ek (; born 17 February 1975) is a Malaysian politician who has served as Member of the Sarawak State Legislative Assembly (MLA) for Bukit Assek since December 2021. He is also a member of the Sarawak United Peoples' Party (SUPP), a component party of the ruling Gabungan Parti Sarawak (GPS) coalition in Sarawak.