Anton Sveinn McKee (born 18 December 1993 in Reykjavík) is a retired Icelandic swimmer who competes in the Men's 400m individual medley.

At the 2012 Summer Olympics he finished 31st overall in the heats of the Men's 400 metre individual medley and failed to reach the final.

[1] At the 2016 Summer Olympics, he finished 18th overall in the heats of the Men's 200 metre breaststroke and failed to reach the final.

At the 2020 Summer Olympics, he finished 24th overall in the heats of the Men's 200 metre breaststroke and failed to reach the final.

At the 2015 Games of the Small States of Europe in Iceland, Anton won three silver medals, for 200 m breaststroke, 200 m medley and as part of the 4 x 200 m freestyle team.