Wee Jeck Seng (Chinese: 黃日昇; pinyin: Huáng Rìshēng; Pe̍h-ōe-jī: Ûiⁿ Ji̍t-seng; born 20 April 1964) is a Malaysian politician who is the Chairman-designate of the Keretapi Tanah Melayu Berhad (KTMB) and the Member of Parliament (MP) for Tanjung Piai from March 2008 to May 2018 and again since November 2019.

[10] Wee won and retained his Tanjong Piai parliamentary seat in the 2013 general election but lost his parliamentary seat to Mohamed Farid Md Rafik from the Malaysian United Indigenous Party (BERSATU) of Pakatan Harapan (PH) in the 2018 general election.

[11][4] In November 2019, Wee managed to return as an opposition MP for Tanjung Piai after he was chosen by the BN as their candidate again to contest the 2019 Tanjung Piai by-election set-upon by the sudden death of incumbent Mohamed Farid[4] and won the six-cornered polls with a landslide majority of 15,086 votes.

Wee is also the first ever MCA politician to be appointed to an additional position besides the MP after the coalition government led by Prime Minister Anwar Ibrahim took over the administration on 24 November 2022.

[17][18][19] In the 2019 Tanjung Piai by-election campaigning time where Wee was a candidate then, he was accused of wasting public funds recklessly during his term as Labuan Port Authority (LPA) chairman from 2017 to 2018 by his successor Chan Foong Hin.