Wei Quanfeng (危全諷) was a warlord late in the Chinese dynasty Tang Dynasty who controlled Fu Prefecture (撫州, in modern Fuzhou, Jiangxi) for over two decades, from 882 to 909, and who, at the prime of his power, also controlled three nearby prefectures. After the destruction of Tang, he held the territory for some time, but in 909 was defeated by armies of the new state of Hongnong, and his territory was seized by Hongnong.
Little is known about Wei Quanfeng's background, including when he was born, as he had no biography in the two official histories of the Tang Dynasty — the Old Book of Tang and the New Book of Tang — or the two official histories of the succeeding Five Dynasties and Ten Kingdoms period — the History of the Five Dynasties and the New History of the Five Dynasties. It is known, however, that he was from Nancheng (南城, in modern Fuzhou, Jiangxi) and that he was leader of the local people. In 882, when another local leader, Zhong Chuan, who had been occupying Fu Prefecture, which Nancheng belonged to, captured Hong Prefecture (洪州, in modern Nanchang, Jiangxi) and was subsequently commissioned by Emperor Xizong of Tang as the governor (觀察使, Guanchashi) of Jiangxi Circuit (江西, headquartered at Hong Prefecture), Zhong left Fu Prefecture and Wei took the opportunity to take it over. Wei also sent his brother Wei Zaichang (危仔倡) to take over nearby Xin Prefecture (信州, in modern Shangrao, Jiangxi).