Esther Kyung-Joo Kaulana Hahn (born December 17, 1985) is a professional surfer and action sports personality. Before attending Yale University

Yale University

Yale University is a private, Ivy League university located in New Haven, Connecticut, United States. Founded in 1701 in the Colony of Connecticut, the university is the third-oldest institution of higher education in the United States...

 (class of 2008), Hahn built up an extensive surfing resume with wins and titles in the NSSA (National Scholastic Surfing Association

National Scholastic Surfing Association

The National Scholastic Surfing Association is a surfing association in the United States. It is the highest level for competitive amateur surfing in the country. Founded in 1978 by Chuck Allen, John Rothrock and Tom Gibbons, the association was formed with the purpose of uniting amateur surfers...

), the USSF (United States Surfing Federation), the ESA (Eastern Surfing Association), and the ASP (Association of Surfing Professionals

Association of Surfing Professionals

The Association of Surfing Professionals is the governing body for professional surfers and is dedicated to showcasing the world’s best talent in a variety of progressive formats.- Predecessors to the ASP :...

). In addition to surf competitions, Hahn appeared in many print ad campaigns for her sponsors and other major brands such as JanSport and Lexus. She has also made appearances at the ESPY Awards

ESPY Awards

An ESPY Award is an accolade presented by the American cable television network ESPN to recognize individual and team athletic achievement and other sports-related performance during the calendar year preceding a given annual ceremony. The first ESPYs were awarded in 1993...

as well as other red carpet events.

Hahn's current sponsors are Bing Surfboards, Airblaster, and Toyota of Manhattan Beach.