Li Zhesi (Chinese: 李哲思; pinyin: Li Zhésī; born 7 August 1995 in Shenyang, Liaoning) is a female Chinese swimmer, who competed for Team China at the 2008 Summer Olympics.
In June 2012, the Chinese Anti-Doping Agency announced Li tested positive for the performance-enhancing drug erythropoietin (EPO). She was dropped from the Olympic team.
- 2007 National Intercity Games – 1st; 50m free
- 2007 National Winter Championships – 1st; 50m free
- 2009 FINA World Championships – 1st (World Record); 4 × 100 m medley relay