Midnight Madness is the second studio album by American rock band Night Ranger, released in October 1983 by MCA Records. The album produced three charting singles and contains the band's best known hit, "Sister Christian." It remains their highest selling album at over a million copies sold in the US.

Night Ranger is an American hard rock band from San Francisco, California. The band, which had its inception in 1979, experienced a surge of popularity during the 1980s with the release of several successful albums and hit singles. Guitarist Brad Gillis and drummer Kelly Keagy have been the band's only constant members, though bassist Jack Blades performed on all but one of their albums. Other current members of the band include guitarist Keri Kelli and keyboardist Eric Levy.