2018 LPGA of Japan Tour
The 2018 LPGA of Japan Tour was the 51st season of the LPGA of Japan Tour, the professional golf tour for women operated by the Ladies Professional Golfers' Association of Japan. The 2018 schedule included 38 official events.
Leading money winner was Ahn Sun-ju with ¥180,784,885. Jiyai Shin won the Mercedes Ranking. Ai Suzuki had the lowest scoring average. Mamiko Higa finished most often inside the top-10.
Schedule
The number in parentheses after winners' names show the player's total number wins in official money individual events on the LPGA of Japan Tour, including that event. All tournaments were played in Japan.| Dates | Tournament | Location | Prize fund | Winner | WWGR pts |
| Mar 1–4 | Daikin Orchid Ladies Golf Tournament | Okinawa | 120,000,000 |  |