| Event: | Women's freestyle 51 kg |
| Championship: | 2009 World Championships |
| Dates: | 23 September 2009 |
| Venue: | Messecenter Herning |
| Competitors: | 27 |
| Nations: | 27 |
| Gold: | Sofia Mattsson |
| Gold Nation: | SWE |
| Silver: | Han Kum-ok |
| Silver Nation: | PRK |
| Bronze: | Oleksandra Kohut |
| Bronze Nation: | UKR |
| Bronze2: | Yuri Kai |
| Bronze2 Nation: | JPN |
| Prev: | 2008 |
| Next: | 2010 |
See main article: 2009 World Wrestling Championships.
The women's freestyle 51 kilograms is a competition featured at the 2009 World Wrestling Championships, and was held at the Messecenter Herning exhibition center in Herning, Denmark on September 23.
This freestyle wrestling competition consists of a single-elimination tournament, with a repechage used to determine the winner of two bronze medals.