| Type: | itf women's circuit |
| RWB Ladies Cup | |
| Event Name: | RWB Ladies Cup (2019–current) O1 Properties Ladies Cup (2016–18) |
| Location: | Khimki, Russia |
| Venue: | Alexander Ostrovsky Academy |
| Category: | ITF $25,000 |
| Surface: | Hard / Indoor |
| Draw: | 32S/32Q/16D |
| Prize Money: | $25,000 |
| Website: | schooltennis.ru |
The RWB Ladies Cup (formerly known as the O1 Properties Ladies Cup) is a tournament for professional female tennis players played on indoor hard courts. The event is classified as a $25,000 ITF Women's Circuit tournament and has been held in Khimki, Russia, annually, since 2016. The event was held as a $100,000 tournament in 2018, but downgraded the following year to a $25,000 tournament.
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
| 2016 |  Anastasia Gasanova | 3–6, 6–2, 6–3 | ||
| 2017 |  Dejana Radanović | 6–3, 6–3 | ||
 Vera Lapko | 6–1, 6–3 | |||
| 2019 | Sofya Lansere | 6–1, 4–6, 6–3 |
| Year | Champions | Runners-up | Score | |
|---|---|---|---|---|
| 2016 | Olga Doroshina Alena Tarasova | 6–2, 6–4 | ||
| 2017 | Olesya Pervushina Anastasia Potapova | 6–0, 6–1 | ||
| Olga Doroshina Anastasiya Komardina | 6–1, 6–2 | |||
| 2019 |  Freya Christie Ekaterina Yashina | 6–3, 6–3 |