Jiang Wan (died November or December 246),[a] courtesy name Gongyan, was a Chinese military general, politician, and regent of the state of Shu during the Three Kingdoms period of China.

During this time, he considered that the land-based route through the Qin Mountains used by Zhuge Liang during the Northern Expeditions was too difficult for navigation and transportation of supplies.

He thus came up with a plan to switch to a water-based route along the Han River targeting Wei territories in present-day southern Shaanxi and northwestern Hubei.

In 243, due to poor health, Jiang Wan relocated from Hanzhong near the Wei–Shu border to Fu County (present-day Mianyang, Sichuan).

Towards the final years of his regency, as his health worsened, Jiang Wan gradually relinquished his powers to his deputies Fei Yi and Dong Yun but he continued to rule as regent in name.

[4] He and his maternal younger cousin, Liu Min (劉敏), were already quite well known in Lingling Commandery before they even reached the age of adulthood (around 19 years old).

[5] Around 209 or 210,[6] Jiang Wan came to serve under the warlord Liu Bei, who was also then the Governor of Jing Province (covering present-day Hubei and Hunan), and held the position of a scribe.

After Liu Bei seized control of Yi Province in 214,[7] he appointed Jiang Wan as the Chief of Guangdu County (廣都縣; northeast of present-day Shuangliu District, Chengdu, Sichuan).

The ox's horns and nose form a shape resembling the character gong (公; literally 'duke'), so you, Sir, will rise to a position equivalent to that of a duke in the future.

[18] Jiang Wan was later nominated as a maocai (茂才) but he declined the honour and offered it to others such as Liu Yong, Yin Hua (陰化), Pang Yan (龐延) and Liao Chun.

[17] He then moved to the staging area in Hanzhong Commandery while leaving behind Jiang Wan and his chief clerk Zhang Yi to take charge of his office in the Shu capital Chengdu.

[20] In 230, following Zhang Yi's death, Jiang Wan replaced him as Zhuge Liang's chief clerk and was given an additional appointment as General Who Pacifies the Army (撫軍將軍).

[27] After Zhuge Liang's death in 234,[26] Jiang Wan succeeded him as regent and held the office of Prefect of the Masters of Writing (尚書令).

[30] At the time, as Zhuge Liang's death was still quite recent, the people of Shu felt deeply troubled by his passing and began to fear for the future of their state.

[31] After Jiang Wan took charge as regent, he demonstrated his talents and skills in leading Shu into a post-Zhuge Liang era.

[32] In 238, the Shu emperor Liu Shan issued an imperial decree to Jiang Wan as follows: "The enemy has yet to be defeated.

The people in the three commanderies in Liaodong have long suffered from tyranny so they have decided to band together and break free from Wei rule.

Once Wu makes a move, both the east and west will launch a coordinated attack on Wei and seize the opportunity to secure victory.

"[33] Liu Shan then granted Jiang Wan permission to create a personal staff to assist him in administering state affairs.

According to his plan, the Shu forces would construct more warships and sail along the Han River to attack the Wei-controlled Weixing (魏興) and Shangyong (上庸) commanderies in present-day southern Shaanxi and northwestern Hubei.

When his plan was put up for discussion in the Shu imperial court, many officials objected to it and pointed out that the water-based route was too risky and not viable in the long term.

If the east and west can work together and launch a coordinated strike, we can at least divide and conquer parts of Wei and gradually cut off its bases of support even if we cannot accomplish our great mission in such a short span of time.

Whenever I discuss with Fei Yi and the others, I always believe that Liang Province is an important and strategic location for both the local tribes and the enemy.

"[39]In late October or November 243, Liu Shan approved Jiang Wan's request to relocate from Hanzhong Commandery to Fu County (涪縣; present-day Mianyang, Sichuan).

[40][34] In late November or December 243, as his health deteriorated, Jiang Wan relinquished his positions as General-in-Chief (大將軍) and Manager of the Affairs of the Masters of Writing (錄尚書事) to Fei Yi,[41] thus making the latter the de facto head of the Shu government.

In the following year, Dong Yun succeeded Fei Yi as Prefect of the Masters of Writing (尚書令)[34] Jiang Wan's health continued to worsen over time until he died sometime between 26 November and 25 December 246.

[45] He also recorded that the people of Shu named Zhuge Liang, Jiang Wan, Fei Yi and Dong Yun as the four heroic chancellors of their state.

When an official suggested conducting an investigation and taking disciplinary action against Yang Min, Jiang Wan said: "I am indeed inferior compared to my predecessor.

When the official sought permission to ask Yang Min to produce evidence to substantiate his claims, Jiang Wan said: "If I am inferior compared to my predecessor, then I am being unreasonable in how I handle issues.

He was killed by mutinying soldiers in March 264[53] when Zhong Hui started a rebellion in Chengdu against the Wei regent Sima Zhao.