| Date: | 10–16 February 2020 |
| Edition: | 2nd |
| Surface: | Hard / Indoor |
| Location: | Kyoto, Japan |
| Category: | ITF Women's World Tennis Tour |
| Prize Money: | $60,000 |
| Champs: |  Xun Fangying |
| Champd: |  Erina Hayashi / Moyuka Uchijima |
| After Year: | 2022 |
The 2020 Shimadzu All Japan Indoor Tennis Championships was a professional tennis tournament played on indoor hardcourts. It was the second edition of the tournament which was part of the 2020 ITF Women's World Tennis Tour. It took place in Kyoto, Japan between 17 and 23 February 2020.[1]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| China | Wang Xinyu | 141 | 1 | |
 Australia | Arina Rodionova | 148 | 2 | |
| China | Xun Fangying | 206 | 3 | |
| Indy de Vroome | 207 | 4 | ||
| Japan | Kyōka Okamura | 223 | 5 | |
| Japan | Akiko Omae | 236 | 6 | |
 Thailand | Peangtarn Plipuech | 286 | 7 | |
| Japan | Ayano Shimizu | 290 | 8 |
The following players received wildcards into the singles main draw:
Miyu Kato Suzuho OshinoThe following players received entry from the qualifying draw:
Erina Hayashi Chisa Hosonuma Kang Jiaqi Ari Matsumoto Kisa Yoshioka Zhang YingSee main article: 2020 Shimadzu All Japan Indoor Tennis Championships – Singles.
Xun Fangying def. Indy de Vroome, 3–6, 6–3, 7–6(8–6)See main article: 2020 Shimadzu All Japan Indoor Tennis Championships – Doubles.
Erina Hayashi / Moyuka Uchijima def. Hsieh Yu-chieh / Minori Yonehara, 7–5, 5–7, [10–6]