Guy Yamamoto (born 1961) is an American amateur golfer from Hawaii.
Coincidentally, Yamamoto and Watabu attended the same high school, although at different times.
While attending Kauai High, he was a member of the school's golf team as well as being active in extracurricular clubs.
A two-putt par from 20 feet proved one better than opponent Chris Riley's bogey; Yamamoto, of Waipahu, Hawaii, defeated the UNLV sophomore, and captured his first United States Golf Association championship.
After 11 previous attempts to qualify for the championship, Yamamoto, age 32, was ecstatic about his victory.
Because of Yamamoto's championship win, he was invited to play in the Masters Tournament in 1995.