Xu Shichang (October 20, 1855 – June 5, 1939) was a Chinese politician who served as the President of the Republic of China, in Beijing, from 10 October 1918 to 2 June 1922. The only permanent president of the Beiyang government to be a civilian, his presidency was also the longest of the Warlord Era. Previously, he was Minister of the Cabinet of the Imperial Cabinet during the Qing Dynasty.

At the end of the Qing dynasty, Xu was made chief of the general staff despite being a civilian. Following the overthrow of the monarchy and the Republic of China's establishment, he was appointed minister of state by Yuan Shikai in 1912, as the latter hoped that this would appease the pro-Qing Royalist Party. Xu resigned as secretary of state (premier) in protest to Yuan's imperial ambition in late 1915. He resumed his post after Yuan abandoned monarchism on 22 March 1916. His election as president was largely engineered by Duan Qirui and his Anhui clique. He was chosen because he was a civilian yet had close ties to the Beiyang Army and was neutral to both its Zhili and Anhui cliques. Lacking any military power of his own, he had to play Duan, Zhili leader Cao Kun, and Fengtian leader Zhang Zuolin against each other to stay in power. Xu believed the monarchy would eventually be restored, and to prepare Puyi for the challenges of the modern world had hired Reginald Johnston to teach Puyi "subjects such as political science, constitutional history and English".

Large student protests (May Fourth Movement) led to Xu cracking down with mass arrests. Ma Jun, a Muslim, led protests against the Versailles Treaty. The delegation in France, was ordered home and China refused to sign or ratify the Treaty of Versailles. Consequently, the shaky alliance between the Zhili and Anhui cliques collapsed with Duan decisively defeated. This led to the era of high warlordism. Conflict with the south flared again in 1920 and he also failed to retake Mongolia. Cao Kun, who never liked Xu, pressured him out of office and restored Li Yuanhong.