Kathleen Elizabeth Hersey (born February 21, 1990) is an American competition swimmer who represented the United States at the 2008 and 2012 Summer Olympics and finished fourth in the 200-meter butterfly in 2012.

Regina Hersey, a former freelance editor, died in January 2012 after a battle with colon cancer.

Hersey says she draws inspiration from her father, a financial consultant who has used a wheelchair since the 1980s after a spinal cord aneurysm, but still maintains an active lifestyle.

During her two years as a Longhorn swimmer, she won eleven Big 12 Conference championships, and was a seven-time All-American.

[13] Hersey won a bronze medal in the 200-meter butterfly at the 2010 Pan Pacific Swimming Championships.

Hersey also competed in the 200-meter freestyle but did not advance past the semi-finals, and placed third in the 100-meter butterfly final.