Ma Xinyi, Chinese general and politician, Viceroy of Liangjiang (b. 1821)
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.

Along with other prominent figures, including Hu Linyi and Guam Wing, Ma raised the Green Standard Army to fight against the Taiping Rebellion and restore the stability of Qing Dynasty. This set the scene for the era later known as the "Tongzhi Restoration" (同治中兴). His assassination symbolized the serious conflict between the Xiang Army and Green Standard Army, both of which fought for the Qing Dynasty.