Lee Ying-yuan (Chinese: 李應元; pinyin: Lǐ Yìngyuán; Wade–Giles: Li3 Ying4-yüen2; Pe̍h-ōe-jī: Lí Èng-goân; 16 March 1953 – 11 November 2021) was a Taiwanese politician. He was elected to the Legislative Yuan in 1995 and stepped down in 2000. In 2005, Lee was appointed the Minister of Council of Labor Affairs, which he led until 2007. Lee has also served as Secretary-General of the Executive Yuan and the Democratic Progressive Party, and was reelected to the Legislative Yuan in 2012. He was appointed the Minister of Environmental Protection Administration (EPA) in 2016. He left the EPA in 2018, and subsequently served as Taiwan's representative to Thailand from 2020 to 2021.

The Ministry of Labor is a ministry of the Taiwanese Executive Yuan administering policies relating to employees and labor. The MOL works with various international organizations and engages in bilateral exchanges to elevate the welfare of laborers in Taiwan, administering programs such as Labor Insurance.