Samuel Lamb or Lin Xiangao (simplified Chinese: 林献羔; traditional Chinese: 林獻羔; pinyin: Lín Xiàn-gāo; Wade–Giles: Lin2 Hsian4-Kao1; October 4, 1924 – August 3, 2013) was a Protestant pastor in Guangzhou, China. He was a leader in the Chinese house church movement and known for his resistance against the state-sanctioned Three-Self Patriotic Movement (TSPM).