Wei Yan (died 234) was a military general of Shu Han during the Three Kingdoms era of Chinese history. He became a soldier of Liu Bei when the latter fled Jing Province and seek protection from the eastern warlord Sun Quan in 208. In 211, Wei had climbed up the ranks and become a general in Liu Bei's invasion to Yi Province (益州, modern Sichuan and Chongqing). His talent and performance during battles helped him to become a major general of Liu Bei's army in a short period of time. He was later named Administrator of Hanzhong (漢中) and regional Area Commander in the year 219.
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