AMG All Music Guide
Steve Huey's review: "a collection of working-class hard rock anthems informed by the big, glittering hooks of glam-rock."
CMJ
Eric Chappe's review: "There's a big audience out there for this once-thought-dead form of rock `n' roll. And it shouldn't be too long before Def Leppard will capture it."
RollingStone.com
David Fricke's review: "Displaying a wisdom beyond their years, Def Leppard take the timeworn basics of heavy metal, give them a punky Eighties overhaul and come up with, uh, heavy melody. On through the Night is awfully impressive for a band making its vinyl debut."