Sigrún Brá Sverrisdóttir (born March 23, 1990, in Reykjavík) is an Icelandic swimmer, who specialized in freestyle events.

[2] Sverrisdottir competed for Iceland in the women's 200 m freestyle at the 2008 Summer Olympics in Beijing.

Leading up to the Games, she scored a time of 2:03.35 to beat the insurmountable FINA B-cut (2:03.50) by 0.15 of a second at the Mare Nostrum Monte Carlo Swim Meet in Monaco.

[3] Swimming on the outside lane in heat one, Sverrisdottir touched with a 2:04.82 to round out a six-strong field to last place, but was unable to hold off the fast-charging Croatian swimmer Anja Trišić, who finished ahead of her by more than a second on a late surge, at the final turn.

Sverrisdottir failed to advance to the semifinals, as she placed forty-fifth overall in the prelims.