Dato Jannie Chan Siew Lee (曾秀丽), also known by her married name, Jannie Tay, is a Singaporean entrepreneur and former president of the Singapore Retailers Association and the ASEAN Business Forum, in both cases the first woman to hold the position. Chan earned a B.Sc. in physiology and an M.Sc. in pharmacology from Monash University in 1968 and 1971, and was a lecturer in both subjects at the National University of Singapore. On 20 June 2019, Chan was declared bankrupt by the Singapore court for owing a moneylender over S$4 million in unpaid debt.