 American swimmer Michael Phelps is the most decorated Olympian, having won 28 medals in both individual and team events (23 gold, 3 silver, and 2 bronze).Has also won more individual events than any other Olympian, with 16 medals (13 gold, 2 silver, and 1 bronze).Norwegian cross-country skier Marit Bjørgen is the most decorated Winter Olympian, with 15 medals (8 gold, 4 silver, and 3 bronze).