Lui Tuck Yew (Chinese: 吕德耀; pinyin: Lǚ Déyào; born 16 August 1961) is a Singaporean diplomat, former politician and two-star rear-admiral who has been serving as Singapore Ambassador to China since 2019. He previously served as Singapore Ambassador to Japan between 2017 and 2019. Prior to entering politics, Lui served in the Republic of Singapore Navy (RSN) and served as Chief of Navy between 1999 and 2003, holding the rank of two-star rear-admiral.