Huang Gai a supporting character in the 14th-century Chinese classic novel Romance of the Three Kingdoms by the late Luo Guanzhong, and its multiple adaptations. He is one of the generals of Sun Jian and Sun Quan.
For the beginning, Huang Gai formed a close alliance with Sun Jian, but he raised an armies to oppose Dong Zhuo. Shortly after their success against Dong Zhuo in the Battle of Hulao Gate, Huang Gai was promoted to Auxiliary Commander. After Sun Jian's death, he remained loyal to the Sun family by following Sun Ce in his Jiangdong conquests. Known for his compassion towards the commoners, he was extremely skilled in the battles between hillmen and Shanyue tribes. When Sun Ce attacked Huang Zu and Liu Xun on the Yangtze River, Huang Gai was appointed Acting Farm Colonel. After Sun Ce's death, Sun Quan continued the war against Huang Zu and appointed Huang Gai, Colonel-in-Chief of Danyang.
Later that years, then division commander under Zhou Yu, he participated in the Battle of Chibi and suggested the ploy of an incendiary attack on the Cao Cao fleet. Pretending to surrender, Huang Gai approached the ships close enough to set them on fire. He is helped by strong winds, the entire fleet of Cao Cao was inflamed, as well as his camps and the latter had to give up conquering the South. Skillful in training his men and never neglecting one of his tasks, Huang Gai was greatly admired by Sun Quan, who gave him the title of General of the Gentlemen of the House.
Huang Gai is often served as prefect in the counties where the Shanyue tribes rebelled and each time he pacified the territory successfully, gaining the respect of his rivals. He was elevated to the rank of Lieutenant-General after defeating the Shanyue in Yiyang County. In all, while he was assigned to nine counties, including Wuling, where he died of natural causes a few years after taking office.
Huang Gai is a muscular veteran who never loses faith in his countrymen. With stamina that belies his age, he is a bold and confident general for Wu. A devoted vassal, he is considered to be an irreplaceable member of the Wu army. Much like Huang Zhong, he was known to make quips regarding younger warriors, but he is also encourages them to always act for the greater cause. Aside from Sun Ce, he gives tips to Zhou Tai on what it means to be a loyal servant.
- He is a playable character in the Dynasty Warriors series.
- He also appears as one of the recurring boss characters in the Knights of Valour game series.