David Kernahan (born 11 July 1965) is a former Australian rules footballer, who played with Carlton Football Club in the Victorian (VFL) and Australian Football Leagues (AFL), and Glenelg Football Club in the South Australian National Football League (SANFL) in the 1980s and 1990s. Nicknamed "Dooza", Kernahan made his senior VFL debut with Carlton in Round One, 1988, against Hawthorn Football Club and while he had to undergo a season-ending knee reconstruction soon after, Kernahan returned in 1989 and was awarded the Carlton Reserves "Best Clubman" that year.