The Lehigh Valley Interscholastic Athletic Conference, known informally as the Lehigh Valley Conference or LVC, was an athletic conference consisting of 12 of the largest high schools from Lehigh and Northampton counties in the Lehigh Valley region of Pennsylvania. It was part of District XI of the Pennsylvania Interscholastic Athletic Association (PIAA). In 2014, its teams were mostly assimilated into the Eastern Pennsylvania Conference, an even larger 18-team league of the largest high schools in the Lehigh Valley and Pocono Mountains regions of eastern and northeastern Pennsylvania.