Ji Young "Pearl" Sinn-Bonanni (born July 17, 1967) is a Korean-American professional golfer who played on the LPGA Tour. She played under her maiden name, Pearl Sinn until her marriage in 2002. Sinn was born in Seoul, South Korea. Her family moved to the United States when she was 9 and she became a U.S. citizen at age 14, renouncing her Korean citizenship. Sinn turned professional in 1989 and played on the Futures Tour and Ladies European Tour where she was Rookie of the Year in 1990. Sinn played on the LPGA Tour from 1991 to 2005, winning once in 1998.