Kelvin Yii Lee Wuen (Chinese: 俞利文; pinyin: Yū Lìwén; Pe̍h-ōe-jī: Jû Lī-bûn; born 31 August 1986),[1] is a Malaysian politician and medical doctor who has served as the Special Advisor to the Ministers of Health Zaliha Mustafa and Dzulkefly Ahmad since April 2023 and the Member of Parliament (MP) for Bandar Kuching since May 2018.

[6] On 24 April 2018, Yii was announced as the candidate of DAP to contest for the Bandar Kuching federal seat as one of the three new faces fielded by the party in the 2018 Malaysian general election.

[9] On 4 December 2018, Speaker of the Dewan Rakyat Mohamad Ariff Md Yusof appointed Yii as a member of the newly formed Budget Select Committee.

[10] On 14 January 2021, Yii was appointed as Chair of the Health, Science and Innovation Select Committee by Speaker of the Dewan Rakyat Azhar Azizan Harun.

[13] On 19 March 2022, he was elected as the new Youth Chief of DAP, in another name, the Chief of DAP Socialist Youth (DAPSY), which is the name of the DAP youth wing in the DAPSY national elections by defeating Bandar Utama MLA Jamaliah Jamaluddin and DAPSY national secretary Eric Teh Hoong Keat by a total of 232 votes, taking over from former Member of the Perak State Executive Council (EXCO) and present Member of the Perak State Legislative Assembly (MLA) for Pasir Pinji Lee Chuan How.