Ma Wanfu (1849–1934), also known as Hajji Guoyuan (果园哈只), was a Dongxiang-Imam of the village Guoyuan (果园村) in Hezhou (present day Dongxiang Autonomous County in Linxia Hui Autonomous Prefecture, Gansu province).

He studied in Mecca and founded in 1888 the Ikhwan Yihewani 伊赫瓦尼) movement, also known as the "New Sect" (Chinese: Xinjiao pai - 新教派 or Xinxinjiao - 新新教) and it spread in Gansu, Ningxia and Qinghai.

The school rejected the Sufism. It claimed that the rites and ceremonies not standing in line with the Quran and the Hadith should be abolished. It was against grave and Murschid (leader / teacher) worship, and advocated against preaching and da'wa done in Chinese.

Ma Wanfu supported the Dungan revolt (1895–1896) against the Qing Dynasty, along with Ma Dahan and Ma Yonglin, but the rebellion was crushed by Chinese Muslim Hui forces led by Dong Fuxiang, Ma Anliang, Ma Fuxiang, Ma Fulu, and Ma Guoliang.

In 1915, Ma Anliang and Yang Zengxin arrested and attempted to executed Ma Wanfu, when Ma Qi rescued him as he was being shipped to execution and brought him to Xining.