Leona Maguire (born 30 November 1994 is an Irish professional golfer. She was ranked 1st in the world on the women's World Amateur Golf Ranking from May 2015 until May 2016 and then from August 2016 until February 2018. Maguire's 135 weeks at the top is the longest in history. A native of County Cavan, her parents are schoolteachers Declan and Breda Maguire. At the age of 9, she gave up a promising swimming career to concentrate on golf. She is 15 minutes younger than her twin sister Lisa Maguire who is also a professional golfer.