|Full name||Wu Wenjin|
|Born|| March 10, 1976
|Peak rating||2602 (October 2000)|
Wu Wenjin (Chinese: 吴文瑾; born March 10, 1976) is a Chinese chess Grandmaster.
In 2000, he became China's 11th Grandmaster.
In October 1999, Wu came joint first (with Dao Thien Hai, Peng Xiaomin, and Bu Xiangzhi) with 6 pts at the Qingdao Daily Cup. In November 2003, Wu came joint second (with Ni Hua, after Zhang Zhong) at the Chinese Men's Individual Chess Championship in Shan Wei. In November 2004, he came joint third (with Wang Yue) at the Chinese Chess Championship in Lanzhou. In December 2004, Wu finished third at the Singapore Masters.
Wu has competed for the China national chess team twice at the Men's Chess Olympiad (1998 and 2000) (games played 12: +5, =3, -4), and once at the Men's Asian Team Chess Championship (1999), with an overall record of 8 games (+5, =2, -1).
He reached his highest FIDE rating of 2602 on October 2000 when he was ranked 86th in the world.