Ma Xinyi (Xiao'erjing: ﻣَﺎ سٍ ىِ, traditional Chinese: 馬新貽; simplified Chinese: 马新贻; pinyin: Mǎ Xīnyí; Wade–Giles: Ma Hsin-I; Styled and variably 穀三; Posthumous title: 端敏公 (Duke Duanmin); November 3, 1821–August 23, 1870) was an eminent Hui Muslim official and a military general of the late Qing Dynasty in China.