Elizabeth Cairns (born October 23, 1992) is an American rugby union player.

She made her international debut for the United States in June 2015 against England.

Cairns was named in the Eagles squad for the 2019 Women’s Rugby Super Series.

[4][5] Cairns was named in the Eagles squad for the 2022 Pacific Four Series in New Zealand.

[10][11] She was selected in the Eagles squad for the 2021 Rugby World Cup in New Zealand.