The men's freestyle 66 kilograms is a competition featured at the 2011 World Wrestling Championships, and was held at the Sinan Erdem Dome in Istanbul, Turkey on 18 September 2011.

Results Legend F — Won by fall WO — Won by walkover

Finals

Top half

Section 1

Section 2

Bottom half

Section 3

Section 4

Repechage

References Results Book, Pages 44–45