The 2011–12 Lehigh Mountain Hawks men's basketball team represented Lehigh University during the 2011–12 NCAA Division I men's basketball season. The Mountain Hawks, led by fifth year head coach Brett Reed, played their home games at Stabler Arena and are members of the Patriot League. They finished the season 27–8, 11–3 in Patriot League play to finish in second place. They were champions the Patriot League Basketball Tournament to earn the conference's automatic bid into the 2012 NCAA Tournament. This was their fifth NCAA Tournament appearance with their last coming in 2010. As a 15 seed, they defeated 2 seed Duke in the second round. It was only the sixth time in NCAA Tournament history that a 15 seed defeated a 2 seed. It was also the second of the tournament as 15 seed Norfolk State d