Jiyai Shin (Korean: 신지애; RR: Sin Jiae; [ɕin dʑi.ɛː]; born 28 April 1988) is a former world No.

In 2008, playing only 10 tournaments on the LPGA Tour as a non-member, she won three events, including the Women's British Open and the ADT Championship.

In 2005, while she was still in high school, Shin was the only amateur to win a KLPGA event that season when she won the SK Enclean Invitational.

Returning to the KLPGA as a rookie in 2006, she started her year with a pair of third-place finishes in her first two events and went on to claim three wins on the season.

Opening 2008 at the Women's World Cup of Golf, Shin and number two KLPGA player Eun-Hee Ji succumbed to the Philippines pair of Jennifer Rosales and Dorothy Delasin with a score of −16 after 3rd and final day of competition.

[1] Shin won the Women's British Open in Berkshire, England for her first LPGA Tour and major win.

[2] Two weeks later she won the ADT Championship, the culminating event in the season-long LPGA playoff series, and claimed the $1 million prize.

She rebounded and won the third event of the season, the limited field HSBC Women's Champions, scoring 66 in both the third and fourth rounds.

She won again in June at the full-field Wegmans LPGA tournament[3] and in September at the P&G Beauty NW Arkansas Championship.

On 3 May, she became the World Number 1 ranked women's golfer, replacing Lorena Ochoa who finished in sixth place in an LPGA tournament the previous day.

With this victory, Shin qualified for the KLPGA Hall of Fame, although she has to fulfill her career as professional golfer for 10 years before membership can be official.

If she continues her professional career, she will be the third Hall of Famer in 2015, after Ok-Hee Ku and Se Ri Pak.

[10] Shin currently owns a home in Atlanta, Georgia, where she lives with her brother, stepmother, and father.