Yondonwangchug[a] (1870 – 24 March 1938) was an Inner Mongolian nobleman of Ulanqab League and politician under the Qing Dynasty, Republic of China and Mengjiang governments.

For short, he is referred to as Prince Yun, a translation of Chinese: 雲王; pinyin: Yún Wáng.

[2] In 1934, he took up the chairmanship of the Mongol Local Autonomy Political Affairs Committee under the Nanjing government.

[5] Yondonwangchug was named chairman of the pro-Japanese Mongol Military Government when it was established in April 1936.

[2] In July 1936, a newspaper account states that he was arrested on a visit to Bailingmiao and held in the military headquarters there, and charged with high treason.