| Singles | |
|---|---|
| 2014 Suzhou Ladies Open | |
| Champion |  Anna-Lena Friedsam |
| Runner-up |  Duan Yingying |
| Final score | 6–1, 6–3 |
Shahar Pe'er was the defending champion, having won the event in 2013, however she chose not to participate.
Anna-Lena Friedsam won the title, defeating Duan Yingying in the final, 6–1, 6–3.
Jana Čepelová (semifinals)
Patricia Mayr-Achleitner (quarterfinals)
Luksika Kumkhum (first round) Anna-Lena Friedsam (champion)
Ksenia Pervak (first round)
Çağla Büyükakçay (first round)
Kateryna Kozlova (quarterfinals) Zheng Saisai (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Jana Čepelová | 4 | 3 | ||||||||||
| 4 | Anna-Lena Friedsam | 6 | 6 | ||||||||||
| 4 | Anna-Lena Friedsam | 6 | 6 | ||||||||||
| Duan Yingying | 1 | 3 | |||||||||||
 Misa Eguchi | 6 | 3 | 2 | ||||||||||
| Duan Yingying | 2 | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | J Čepelová | 6 | 6 | ||||||||||||||||||||||||
 E Webley-Smith | 3 | 3 | 1 | J Čepelová | 6 | 6 | |||||||||||||||||||||
| E Hozumi | 6 | 3 | E Hozumi | 1 | 4 | ||||||||||||||||||||||
| N Kichenok | 3 | 0 | r | 1 | J Čepelová | 6 | 79 | ||||||||||||||||||||
| WC | Z Yang | 6 | 6 | 8/WC | S Zheng | 1 | 67 | ||||||||||||||||||||
| WC | Y Li | 0 | 2 | WC | Z Yang | 0 | 4 | ||||||||||||||||||||
 N Abduraimova | 4 | 2 | 8/WC | S Zheng | 6 | 6 | |||||||||||||||||||||
| 8/WC | S Zheng | 6 | 6 | 1 | J Čepelová | 4 | 3 | ||||||||||||||||||||
| 4 | A-L Friedsam | 6 | 6 | 4 | A-L Friedsam | 6 | 6 | ||||||||||||||||||||
| Y Xin | 2 | 0 | 4 | A-L Friedsam | 6 | 6 | |||||||||||||||||||||
 M Czink | 5 | 4 |  P Martić | 3 | 2 | ||||||||||||||||||||||
| P Martić | 7 | 6 | 4 | A-L Friedsam | 6 | 6 | |||||||||||||||||||||
 L Zhang | 77 | 7 | 7 | K Kozlova | 3 | 4 | |||||||||||||||||||||
 S Shapatava | 62 | 5 | L Zhang | 3 | 7 | 1 | |||||||||||||||||||||
| L Zhu | 3 | 0 | 7 | K Kozlova | 6 | 5 | 6 | ||||||||||||||||||||
| 7 | K Kozlova | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | Ç Büyükakçay | 63 | 6 | 63 | |||||||||||||||||||||||
| L Kichenok | 77 | 3 | 77 | L Kichenok | 0 | 1 | |||||||||||||||||||||
| M Eguchi | 6 | 1 | 77 | M Eguchi | 6 | 6 | |||||||||||||||||||||
 Ar Rodionova | 3 | 6 | 63 | M Eguchi | 77 | 6 | |||||||||||||||||||||
 S-y Hsieh | 2 | 0 | R Ozaki | 65 | 0 | ||||||||||||||||||||||
| R Ozaki | 6 | 6 | R Ozaki | 6 | 6 | ||||||||||||||||||||||
| C-w Chan | 6 | 6 | C-w Chan | 3 | 2 | ||||||||||||||||||||||
| 3 | L Kumkhum | 4 | 4 | M Eguchi | 6 | 3 | 2 | ||||||||||||||||||||
| 5 | K Pervak | 3 | 4 | Y Duan | 2 | 6 | 6 | ||||||||||||||||||||
| Y Duan | 6 | 6 | Y Duan | 0 | 77 | 6 | |||||||||||||||||||||
| Y Wang | 1 | 0 | WC | F Liu | 6 | 64 | 4 | ||||||||||||||||||||
| WC | F Liu | 6 | 6 | Y Duan | 6 | 6 | |||||||||||||||||||||
| Y Yuan | 1 | 1 | 2 | P Mayr-Achleitner | 4 | 3 | |||||||||||||||||||||
 M Linette | 6 | 6 | M Linette | 63 | 5 | ||||||||||||||||||||||
| A Zhu | 1 | 0 | 2 | P Mayr-Achleitner | 77 | 7 | |||||||||||||||||||||
| 2 | P Mayr-Achleitner | 6 | 6 | ||||||||||||||||||||||||
Alexandra Panova was the defending champion, but chose not to participate.
Kateryna Kozlova was the defending champion, having won the event in 2012, but lost in the semifinals to Marta Sirotkina.
Monica Niculescu was the defending champion, but retired in the quarterfinals against Carla Suárez Navarro.
Klára Zakopalová won the title, defeating Garbiñe Muguruza in the final, 4–6, 7–5, 6–0.
Alison Van Uytvanck was the defending champion, but chose to participate at the 2014 Open GDF Suez de Limoges instead.
Heather Watson was the defending champion, but lost to Polona Hercog in the first round.
Coco Vandeweghe was the defending champion, but lost in the quarterfinals to Kiki Bertens.
This was the first edition of the tournament in the 2015 ITF Women's Circuit.
Annika Beck was the defending champion, but lost in the first round to Anna-Lena Friedsam.
Simona Halep was the defending champion, but lost in the quarterfinals to Serena Williams.
This was the first edition of the tournament. Gabriela Dabrowski and María José Martínez Sánchez won the title, defeating Anna-Lena Friedsam and Laura Siegemund in the final, 6–4, 6–2.
Anna-Lena Friedsam was the defending champion but chose to participate in Mallorca instead.
Karolína Plíšková was the defending champion, but lost in the second round to Victoria Azarenka.
Raquel Atawo and Anna-Lena Grönefeld were the defending champions, but chose not to participate together this year. Atawo played alongside Katarina Srebotnik, but lost in the quarterfinals to Anastasia Pavlyuchenkova and Lucie Šafářová. Grönefeld teamed up with Demi Schuurs, but lost in the first round to Gabriela Dabrowski and Jeļena Ostapenko.
Aryna Sabalenka was the defending champion, but lost in the second round to Kristýna Plíšková.
Zoe Hives and Astra Sharma were the defending champions, having won the last edition in 2019, however Hives chose not to participate. Sharma played alongside Aliona Bolsova, but lost in the semifinals to Elixane Lechemia and Ingrid Neel.
World No. 1 Ashleigh Barty defeated Aryna Sabalenka in the final, 3–6, 6–0, 6–3 to win the women's singles tennis title at the 2021 edition of the Stuttgart Open.
Mona Barthel and Anna-Lena Friedsam were the defending champion from when the tournament was last held in 2019, but lost in the quarterfinals to Nadiia Kichenok and Raluca Olaru.
This was the first edition of the tournament.
This was the first edition of the women's event.
Belinda Bencic was the defending champion, having won the previous edition in 2019, but she withdrew before the tournament began.