Kerry O'Flaherty (born 15 July 1981) is an Irish runner competing primarily in the 3000 metres steeplechase.

[5] O'Flaherty completed a sports science degree and studied physical education at Ulster University.

[6] She improved on her Northern Ireland 3000m steeplechase record at the 2014 International Flanders Athletics Meeting in Oordegem with a time of 9:52.94, finishing fifth.

She was injured at the same event the previous year and missed most of the season due to a faulty water barrier.

[10] In the 2016 European Championships, she finished in sixth place, behind her teammate Sara Treacy, and achieved a personal best time of 9:45.53, advancing to the finals.

[17][18] O'Flaherty worked on qualifying for Northern Ireland's 2018 Commonwealth Games team, which had a qualification standard of 9:54.00.

The team was allocated 11 spots so O'Flaherty was not selected to represent Northern Ireland at the 2018 Commonwealth Games.