Japan Billie Jean King Cup team
| Japan | |
|---|---|
| Captain | Ai Sugiyama | 
| ITF ranking | 14 (03 December 2024) | 
| Colors | Red & White | 
| First year | 1964 | 
| Years played | 56 | 
| Ties played (W–L) | 177 (109–68) | 
| Years in World Group  | 30 (12–27) | 
| Best finish | World Group SF (1996) | 
| Most total wins | Kazuko Sawamatsu (44–10) | 
| Most singles wins | Kazuko Sawamatsu (25–5) | 
| Most doubles wins | Shuko Aoyama (25–6) | 
| Best doubles team | Shuko Aoyama / Eri Hozumi (15–3)  | 
| Most ties played | Shuko Aoyama (31) | 
| Most years played | Ai Sugiyama (12) | 
The Japan women's national tennis team represents Japan in Fed Cup tennis competition and are governed by the Japan Tennis Association. Most recently, in 2024, they qualified for the finals by beating Kazakhstan in April, and then reached the quarter-finals of the competition with a win over Romania in November.