Head to Head
| International Women | 2022/08/27 10:00 | Japan (W) v Ireland (W) | L | 29-10 |
| International Women | 2022/08/20 10:00 | Japan (W) v Ireland (W) | W | 22-57 |
| International Women | 2021/11/20 15:00 | Ireland (W) v Japan (W) | W | 15-12 |
| Women's Rugby World Cup | 2017/08/13 16:15 | Ireland (W) v Japan (W) | W | 24-14 |
Home History
| Womens Six Nations | 2025/04/26 13:30 | Scotland (W) v Ireland (W) | L | 26-19 |
| Womens Six Nations | 2025/04/20 14:00 | Wales (W) v Ireland (W) | W | 14-40 |
| Womens Six Nations | 2025/04/12 15:45 | Ireland (W) v England (W) | L | 5-49 |
| Womens Six Nations | 2025/03/30 14:00 | Italy (W) v Ireland (W) | W | 12-54 |
| Womens Six Nations | 2025/03/22 13:00 | Ireland (W) v France (W) | L | 15-27 |
| WXV 1 Women | 2024/10/11 19:30 | USA (W) v Ireland (W) | W | 14-26 |
| WXV 1 Women | 2024/10/05 22:45 | Canada (W) v Ireland (W) | L | 21-8 |
| WXV 1 Women | 2024/09/30 02:00 | New Zealand (W) v Ireland (W) | W | 27-29 |
Away History
| International Women | 2025/04/27 01:05 | USA (W) v Japan (W) | W | 33-39 |
| WXV 2 Women | 2024/10/11 14:00 | Wales (W) v Japan (W) | L | 19-10 |
| WXV 2 Women | 2024/10/05 12:00 | Japan (W) v Scotland (W) | L | 13-19 |
| WXV 2 Women | 2024/09/27 14:00 | South Africa (W) v Japan (W) | L | 31-24 |
| International Women | 2024/08/17 09:00 | Japan (W) v USA (W) | L | 8-11 |
| International Women | 2024/08/11 09:00 | Japan (W) v USA (W) | D | 17-17 |
| WXV 2 Women | 2023/10/27 12:00 | Scotland (W) v Japan (W) | L | 38-7 |
| WXV 2 Women | 2023/10/21 14:00 | Japan (W) v Samoa (W) | W | 32-10 |