Huan Fan (died 9 February 249),[a] courtesy name Yuanze, was an official and military general of the state of Cao Wei during the Three Kingdoms period of China.
Cao Pi put Huan Fan, Wang Xiang (王象) and Liu Shao in charge of writing the Huang Lan (皇覽).
During the reign of the second Wei emperor Cao Rui (r. 226–239), Huan Fan served as a Master of Writing (尚書) and Commandant of the Central Army (中領軍).
He attempted to abuse his powers by executing Zheng Qi, but the latter reported him to the imperial court first, resulting in Huan Fan being dismissed from office.
When he saw that Lü Zhao (呂昭) had reached a higher position than him even though he started serving in the Cao Wei state later than him, he became unhappy and claimed to be ill and stayed at home.