190–192), courtesy name Wencai, was a military officer serving under the warlord Dong Zhuo during the late Eastern Han dynasty of China.
In 191, he was sent to Yangren (陽人; believed to be near present-day Wenquan, Ruzhou, Henan), with 5,000 men to resist Sun Jian's invasion from the south.
However, Hu Zhen and Yang Ding joined the enemy soon after Xu Rong was killed in battle.
When Li Jue and Guo Si took over the capital Chang'an from Wang Yun, Hu Zhen became the Colonel-Director of Retainers (司隸校尉) under their command.
In the 14th-century historical novel Romance of the Three Kingdoms, Hu Zhen was slain by Cheng Pu, a military officer under Sun Jian, during the fictional Battle of Sishui Pass.