Karolyn Kirby (born June 30, 1961) is an American female retired beach volleyball player.

She won the bronze medal at the 1997 World Championships in Los Angeles, California, partnering with Nancy Reno.

[4] Kirby was twice an AIAW volleyball All-American at Utah State University (USU), leading the Aggies to consecutive top 10 national finishes from 1979 to 1981.

[5] Kirby helped USU to a combined record of 106–38 (.736) over the three years that she played for the school, including a second-place finish in the 1979 AIAW Nationals at 35–5.

[5] Kirby was briefly on the United States women's national volleyball team in 1986, and was a teammate of Masakayan.