| Hong Kong – Singles | |
|---|---|
| 2015 ITF Women's Circuit – Hong Kong | |
| Champion |  Misaki Doi |
| Runner-up |  Zhang Kailin |
| Final score | 6–3, 6–3 |
This was a new event in the 2015 ITF Women's Circuit.
Misaki Doi won the title, defeating Zhang Kailin in the final, 6–3, 6–3.
Andreea Mitu (first round) Misaki Doi (champion)
Aliaksandra Sasnovich (first round) Eri Hozumi (second round; retired)
Ekaterina Bychkova (quarterfinals)
Chan Yung-jan (quarterfinals)
Stephanie Vogt (quarterfinals) Marina Melnikova (first round)| Semifinals | Final | ||||||||||||
| Q |  Han Na-lae | 6 | 3 | 0 | |||||||||
| Zhang Kailin | 1 | 6 | 6 | ||||||||||
| Zhang Kailin | 3 | 3 | |||||||||||
| 2 | Misaki Doi | 6 | 6 | ||||||||||
| Hiroko Kuwata | 1 | 6 | 4 | ||||||||||
| 2 | Misaki Doi | 6 | 1 | 6 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Mitu | 4 | 65 | ||||||||||||||||||||||||
 Vara Wongteanchai | 6 | 77 | Vara Wongteanchai | 4 | 2 | ||||||||||||||||||||||
| Q | N-l Han | 6 | 7 | Q | N-l Han | 6 | 6 | ||||||||||||||||||||
| X Han | 1 | 5 | Q | N-l Han | 7 | 6 | |||||||||||||||||||||
| M Sirotkina | 6 | 6 | 7 | S Vogt | 5 | 4 | |||||||||||||||||||||
| Q | S-j Jang | 3 | 3 | M Sirotkina | 5 | 2 | |||||||||||||||||||||
 G Barbieri | 2r | 7 | S Vogt | 7 | 6 | ||||||||||||||||||||||
| 7 | S Vogt | 5 | Q | N-l Han | 6 | 3 | 0 | ||||||||||||||||||||
| 3 | A Sasnovich | 2 | 7 | 0 | K Zhang | 1 | 6 | 6 | |||||||||||||||||||
| N Hibino | 6 | 5 | 6 | N Hibino | 3 | 6 | 4 | ||||||||||||||||||||
| WC |  E Chong | 4 | 0 | K Zhang | 6 | 4 | 6 | ||||||||||||||||||||
| K Zhang | 6 | 6 | K Zhang | 6 | 0 | 6 | |||||||||||||||||||||
| J Namigata | 6 | 6 | 5 | E Bychkova | 4 | 6 | 1 | ||||||||||||||||||||
| Q | M Ninomiya | 3 | 3 | J Namigata | 4 | 2 | |||||||||||||||||||||
| WC | Y-t Ki | 0 | 0 | 5 | E Bychkova | 6 | 6 | ||||||||||||||||||||
| 5 | E Bychkova | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | M Melnikova | 3 | 5 | ||||||||||||||||||||||||
| M Imanishi | 6 | 7 | M Imanishi | 1 | 1 | ||||||||||||||||||||||
| N Osaka | 4 | 6 | 6 | N Osaka | 6 | 6 | |||||||||||||||||||||
 R Peterson | 6 | 3 | 4 | N Osaka | 4 | 3 | |||||||||||||||||||||
| H Kuwata | 6 | 6 | H Kuwata | 6 | 6 | ||||||||||||||||||||||
| L Zhang | 2 | 3 | H Kuwata | 6 | 0 | ||||||||||||||||||||||
| WC | M Ng | 0 | 3 | 4 | E Hozumi | 2 | 0r | ||||||||||||||||||||
| 4 | E Hozumi | 6 | 6 | H Kuwata | 1 | 6 | 4 | ||||||||||||||||||||
| 6 | Y-j Chan | 6 | 1 | 2 | M Doi | 6 | 1 | 6 | |||||||||||||||||||
| A Brianti | 1 | 0r | 6 | Y-j Chan | 6 | 6 | |||||||||||||||||||||
| WC | H-c Wu | 0 | 1 | Q | C-y Hsu | 2 | 3 | ||||||||||||||||||||
| Q | C-y Hsu | 6 | 6 | 6 | Y-j Chan | 2 | 2 | ||||||||||||||||||||
 M Johansson | 6 | 4 | 6 | 2 | M Doi | 6 | 6 | ||||||||||||||||||||
 A Amanmuradova | 4 | 6 | 3 | M Johansson | 4 | 1 | |||||||||||||||||||||
| T Tanasugarn | 3 | 4 | 2 | M Doi | 6 | 6 | |||||||||||||||||||||
| 2 | M Doi | 6 | 6 | ||||||||||||||||||||||||
Kimiko Date-Krumm was the defending champion, but chose to not compete this year.
Misaki Doi defeated Junri Namigata in the final 7–5, 6–2.
Agnieszka Radwańska was the defending champion, but lost 6–0, 6–3 in the semifinals to the eventual champion Serena Williams.
Hsieh Su-wei was the defending champion, but decided not to participate.
Stefanie Vögele was the defending champion, having won the event in 2012, but decided not to participate in 2013.
Eugenie Bouchard was the defending champion, but chose not to participate this year.
Ana Ivanovic was the defending champion, but lost in the second round to Michelle Larcher de Brito.
Serena Williams was the defending champion, but withdrew due to an elbow injury.
Misaki Doi and Elina Svitolina were the defending champions, but Doi decided not to participate.
Svitolina partnered Daria Gavrilova and successfully defended the title, defeating Çağla Büyükakçay and Jelena Janković in the final, 5–7, 6–1, [10–4].
Annika Beck was the defending champion, but lost in the first round to Anna-Lena Friedsam.
Vitalia Diatchenko was the defending champion, but she chose not to participate.
Misaki Doi was the defending champion, but lost in the first round to Lauren Davis.
Venus Williams was the defending champion, but chose to compete in St. Petersburg instead.
Elina Svitolina was the defending champion, but chose to compete in Stuttgart instead.
Caroline Wozniacki was the two-time defending champion, but lost in the second round to Camila Giorgi.
Maria Sharapova was the defending champion, but withdrew due to a shoulder injury.
Hsieh Su-wei was the defending champion, but lost to Nao Hibino in the quarterfinals.
Eri Hozumi and Zhang Shuai were the defending champions, but Zhang chose to compete in Nanchang instead. Hozumi played alongside Makoto Ninomiya, but lost in the quarterfinals to Christina McHale and Valeria Savinykh.
Petra Kvitová won her second title at the Qatar Open, defeating Garbiñe Muguruza in the singles final, 6–2, 6–1, in a rematch of the 2018 final. Kvitová dropped just one set the entire tournament, to Anett Kontaveit in the quarterfinals.
Garbiñe Muguruza defeated Barbora Krejčíková in the final, 7–6(8–6), 6–3 to win the women's singles tennis event at the 2021 Dubai Tennis Championships. Muguruza dropped just one set the entire tournament, to Aryna Sabalenka in the quarterfinals.
Misaki Doi was the defending champion but chose not to participate.