Dominik Koll (born December 24, 1984) is an Austrian former swimmer, who specialized in freestyle events. He is a two-time Olympian, a 41-time national titleholder, and a 5-time long and short course Austrian record holder. Koll is a member of the swimming team for SK VÖEST Linz. He won a bronze medal, as a member of the Austrian swimming team, at the 2008 European Championships in Eindhoven, Netherlands. Koll is one of few LGBT Olympians to come out as gay.