The 2013 LPGA of Japan Tour was the 46th 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 36 golf tournaments, all played in Japan.
Leading money winner was Rikako Morita with ¥126,675,049. Sakura Yokomine won the Mercedes Ranking and finished most often (16 times) inside the top-10. Ahn Sun-ju had the highest scoring average.[1]
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.
| Dates | Tournament | Location | Prize fund (¥) | Winner |
| Mar 8–10 | Daikin Orchid Ladies Golf Tournament | Okinawa | 80,000,000 |  Rikako Morita (3) |
| Mar 15–17 | Yokohama Tire Golf Tournament PRGR Ladies Cup | Kōchi | 80,000,000 |  Jeon Mi-jeong (22) |
| Mar 22–24 | T-Point Ladies Golf Tournament | Kagoshima | 70,000,000 | Yuki Ichinose (1) |
| Mar 29–31 | AXA Ladies Golf Tournament in Miyazaki | Miyazaki | 80,000,000 | Natsuka Hori (1) |
| Apr 4–7 | Yamaha Ladies Open Katsuragi | Shizuoka | 100,000,000 | Mamiko Higa (1) |
| Apr 12–14 | Studio Alice Women's Open | Hyogo | 60,000,000 | Kim Na-ri (2) |
| Apr 19–21 | KKT Cup Vantelin Ladies Open | Kumamoto | 70,000,000 | Miki Saiki (6) |
| Apr 26–28 | Fuji Sankei Ladies Classic | Shizuoka | 80,000,000 | Miki Saiki (7) |
| May 3–5 | CyberAgent Ladies Golf Tournament | Chiba | 70,000,000 | Sakura Yokomine (19) |
| May 9–12 | World Ladies Championship Salonpas Cup | Ibaraki | 120,000,000 | Hiromi Mogi (6) |
| May 17–19 | Hokken No Madoguchi Ladies | Fukuoka | 120,000,000 |  Onnarin Sattayabanphot (1) |
| May 24–26 | Chukyo TV Bridgestone Ladies Open | Aichi | 70,000,000 | Rikako Morita (4) |
| May 31 – Jun 2 | Resort Trust Ladies | Hyogo | 70,000,000 | Mamiko Higa (2) |
| Jun 7–9 | Yonex Ladies Golf Tournament | Niigata | 60,000,000 | Junko Omote (3) |
| Jun 13–16 | Suntory Ladies Open | Hyogo | 100,000,000 | Rikako Morita (5) |
| Jun 21–23 | Nichirei Ladies | Chiba | 80,000,000 | Yumiko Yoshida (2) |
| Jun 27–30 | Earth Mondahmin Cup | Chiba | 140,000,000 | Natsuka Hori (2) |
| Jul 5-7 | Nichi-Iko Women's Open Golf Tournament | Toyama | 60,000,000 | Kim Young (1) |
| Jul 19–21 | Samantha Thavasa Girls Collection Ladies Tournament | Ibaraki | 60,000,000 | Yumiko Yoshida (3) |
| Aug 9–11 | Meiji Cup | Hokkaido | 90,000,000 | Na Da-ye (1) |
| Aug 16–18 | NEC Karuizawa 72 Golf Tournament | Nagano | 70,000,000 | Misuzu Narita (2) |
| Aug 23–25 | CAT Ladies | Kanagawa | 60,000,000 | Ahn Sun-ju (12) |
| Aug 30 – Sep 1 | Nitori Ladies Golf Tournament | Hokkaido | 100,000,000 | Ahn Sun-ju (13) |
| Sep 6–8 | Golf5 Ladies | Hokkaido | 60,000,000 | Yumiko Yoshida (4) |
| Sep 12–15 | Japan LPGA Championship Konica Minolta Cup | Hokkaido | 140,000,000 | Lee Bo-mee (4) |
| Sep 20–22 | Munsingwear Ladies Tokai Classic | Aichi | 80,000,000 | Sakura Yokomine (20) |
| Sep 27–29 | Miyagi TV Cup Dunlop Women's Open Golf Tournament | Miyagi | 70,000,000 | Lee Na-ri (1) |
| Oct 3–6 | Japan Women's Open Golf Championship | Kanagawa | 140,000,000 | Mika Miyazato (2) |
| Oct 11–13 | Stanley Ladies Golf Tournament | Shizuoka | 90,000,000 | Kang Soo-yun (1) |
| Oct 18–20 | Fujitsu Ladies | Chiba | 80,000,000 | Lee Na-ri (2) |
| Oct 24–27 | Nobuta Group Masters GC Ladies | Hyogo | 140,000,000 | Sakura Yokomine (21) |
| Nov 1–3 | Hisako Higuchi – Morinaga Weider Ladies | Chiba | 70,000,000 | Lee Bo-mee (5) |
| Nov 8–10 | Mizuno Classic | Mie | US$1,200,000 |  Teresa Lu (1) |
| Nov 15–17 | Ito En Ladies Golf Tournament | Chiba | 90,000,000 | Sakura Yokomine (22) |
| Nov 21–24 | Daio Paper Elleair Ladies Open | Ehime | 100,000,000 | Rikako Morita (6) |
| Nov 28 – Dec 1 | Japan LPGA Tour Championship Ricoh Cup | Miyazaki | 100,000,000 | Shiho Oyama (13) |
Events in bold are majors.
The Mizuno Classic is co-sanctioned with the LPGA Tour.
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