Lee Chean Chung is a Malaysian politician, researcher and environmental activist who has served as the Member of Parliament (MP) for Petaling Jaya since November 2022. He served as Member of the Pahang State Legislative Assembly (MLA) for Semambu from May 2013 to November 2022. He is a member of the People's Justice Party (PKR), a component party of the Pakatan Harapan (PH) coalition. He has also served as the Communications Director of PKR since July 2022, Vice Chairman of PKR of Pahang since 2019, Division Chief of PH of Indera Mahkota since 2018 and Division Chief of PKR of Indera Mahkota since 2011. He also served as the Treasurer-General of PKR from December 2018 to July 2022, Youth Information Chief of PKR from 2015 to 2018, Vice Youth Chief of PKR of Petaling Jaya Utara from 2008 to 2012, Research Officer of the Office of the Leader of the Opposition from 2008 to 2011 as well as Member of the Board of Directors of Kuantan Port Authority in 2019.

The People's Justice Party ; often known simply as KEADILAN or PKR, is a reformist political party in Malaysia formed on 3 August 2003 through a merger of the party's predecessor, the National Justice Party, with the socialist Malaysian People's Party. The party's predecessor was founded by Wan Azizah Wan Ismail during the height of the Reformasi movement on 4 April 1999 after the arrest of her husband, former Deputy Prime Minister Anwar Ibrahim. The party is one of main partners of the Pakatan Harapan (PH) coalition.