Rhona Kathleen Adair (2 September 1881 – 27 March 1961) was an Irish amateur golfer.

[2] In 1899 she nearly beat the 77 year old "Old Tom Morris" who had designed the St Andrews Links where they were playing.

[2] Adair defeated leading American golfer Margaret Curtis during a tournament at Merion, Philadelphia and this led the Illustrated Sporting News to say that she was "the foremost lady golfer in the world".

[1] In October 1906, Adair married Algernon Cuthell, an army Captain from West Yorkshire and gave up her career in competitive golf to raise two children in Aldershot.

[1] After he died she returned to Ireland where she remained supportive of women's golf and rose to be president of the Irish Ladies Golf Union; she was president in 1961 when she died at Portrush in County Antrim.