Heather Ann Arseth is an American-born swimmer who competed for the East African Island nation of Mauritius, near Madagascar, in the 2012 and 2016 Olympics.

[2][3] In other International Competition, she competed in the 2011 China, 2013 Spain, and 2015 FINA World Aquatics Championships in Russia, as well as the 2015 African Games.

Also at the Big Ten Championships, she was a part of the 200 m free relay with her time of 1:31:68 that set a school record.

[4] As an American competing for the Island nation of Mauritius, off East Africa, she completed her 2012 Olympic 200 meter freestyle with a time of 2:07.81 at the London Aquatics Center on July 30, 2012, failing to make it to the semi-final round.

[7][1] On January 18, 2013, she competed in the 15th FINA World Championships in China, and received a 58.73 in the Women's 100 M freestyle, placing her 54th.

[4] On March 8, 2015, she swam in the Women's 100 meter backstroke at the 15th FINA World Championships in Russia, with a time of 1:06:25, placing her 52nd in competition.

[4] Around August 10–11, 2016, she swam the 100-meter freestyle at the Rio Olympics, in the outdoor Maria Lenk Aquatic Center, and finished 37th overall with a time of 58.89.

Due to her time and position, she did not advance past her first heat or to the following semi-final round though she did compete against the world's best.