| Tan Lun | |
| Birth Date: | August 4, 1519 |
| Birth Place: | Yihuang County, Jiangxi |
| Death Place: | Beijing |
| Occupation: | Politician |
Tan Lun (courtesy name Zili 子理, 以詔; Art name Erhua 二華, (August 4, 1519 - April 20, 1577) was an eminent Han Chinese official, military general, of the Jiajing Emperor of mid-Ming Dynasty in China.
Tan Lun raised and organized Qi Jiguang and several other generals to fight effectively against the Jiajing wokou pirates and along with other prominent figures restored the stability of the Ming Dynasty. He was known for his strategic perception, administrative skill, and for consolidating military strength during the middle Ming Dynasty. He was also known for his ruthlessness in the execution of his policies. Tan also exemplified loyalty in an era of chaos. He died in 1577, where he was bestowed the posthumous honour of Grand Guardian of the Heir Apparent (Chinese: 太子太保).
The 1975 King Hu film The Valiant Ones features Tan Lun.