| Event: | Men's freestyle 66 kg |
| Championship: | 2003 World Championships |
| Dates: | 12–14 September 2003 |
| Venue: | Madison Square Garden |
| Competitors: | 40 |
| Nations: | 40 |
| Gold: | Irbek Farniev |
| Gold Nation: | RUS |
| Silver: | Serafim Barzakov |
| Silver Nation: | BUL |
| Bronze: | Kazuhiko Ikematsu |
| Bronze Nation: | JPN |
| Prev: | 2002 |
| Next: | 2005 |
See main article: 2003 World Wrestling Championships.
The men's freestyle 66 kilograms is a competition featured at the 2003 World Wrestling Championships, and was held at the Madison Square Garden in New York, United States from 12 to 14 September 2003.[1]