Huan Fan (died 249), style name Yuanze, is a minister of the state of Cao Wei during the Three Kingdoms period of Chinese history.

Huan Fan becomes very close to Cao Shuang and later earns the nickname "Font of Wisdom".

At one time, Huan Fan counsels Cao Shuang to fight onward rather than to surrender to Sima Yi.

However, though very logical, Huan Fan's counsel ultimately falls on deaf ears.