The 2009 LPGA of Japan Tour was the 42nd season of the LPGA of Japan Tour, the professional golf tour for women operated by the Ladies Professional Golfers' Association of Japan. It consisted of 35 golf tournaments, all played in Japan.
Sakura Yokomine won the Order of Merit, had the lowest scoring average and finished most often (22 times) inside the top-10.
Events in bold are majors.
The Mizuno Classic was co-sanctioned with LPGA Tour.