Diane Lee Ching-an (???, born 17 January 1959) is a former member of the Legislative Yuan of the Republic of China on Taiwan. She naturalised as a U.S. citizen in 1991, but later relinquished U.S. citizenship. Lee, a Kuomintang member, held elected public office in Taiwan from 1994 to 2009, first as a Taipei City Councilwoman and then for three terms as a legislator representing Da'an District, Taipei.