Lydia Ko, New Zealand golfer
Lydia Ko (born 24 April 1997) is a Korean-born New Zealand professional golfer. A former No. 1-ranked woman professional golfer, she achieved the top ranking on 2 February 2015 at 17 years, 9 months and 9 days of age, making her the youngest player of either gender to be ranked No. 1 in professional golf.Ko has had much success from an early age holding many youngest accolades on the LPGA Tour. She was the youngest person ever to win a professional golf tour event and youngest person ever to win an LPGA Tour event. In August 2013, she became the only amateur to win two LPGA Tour events. Upon winning The Evian Championship in France on 13 September 2015, she became the youngest woman, at age 18 years, 4 months and 20 days, to win a major championship. Her closing round of 63 was a record lowest final round in the history of women's golf majors, but she lowered that record to 62 at the ANA Inspiration in 2021. She had previously won the ANA Inspiration on 3 April 2016 for her second consecutive major championship, where she also became the youngest player to win two women's major championships. Since turning professional in 2014, Ko has won 15 tournaments.

In 2014, Ko was named as one of Time magazine's 100 most influential people. In both 2014 and 2015, Ko has been named in the EspnW Impact25 list of 25 athletes and influencers who have made the greatest impact for women in sports.

In 2016, Ko was named Young New Zealander of the Year, and in the 2019 New Year Honours, she was appointed a Member of the New Zealand Order of Merit for services to golf.