Hee Loy Sian (simplified Chinese: ???; traditional Chinese: ???; pinyin: Xu Láixián; born 18 June 1970) is a Malaysian politician and incumbent Selangor State Legislative Assemblyman for Kajang.
He previously was the Member of the Parliament of Malaysia for the Petaling Jaya Selatan (South Petaling Jaya) constituency in Selangor for two terms from 2008 to 2018.
He is a member of the Parti Keadilan Rakyat (PKR) in the Pakatan Harapan (PH) coalition.
Hee was elected to Parliament in the 2008 election, winning the seat of Petaling Jaya Selatan from Deputy Tourism Minister Donald Lim Siang Chai of the Barisan Nasional coalition.
He was reelected again in the 2013 election.
In the 2018 election, Hee contested and won the Kajang state seat in Selangor.