| Women's singles | |
|---|---|
| 2023 Slovak Open | |
| Champion |  Ella Seidel |
| Runner-up |  Sofya Lansere |
| Score | 6–4, 7–6(7–4) |
Ana Konjuh was the defending champion [1] but chose not to participate.
Ella Seidel won the title, defeating Sofya Lansere in the final, 6–4, 7–6(7–4).
Olivia Gadecki (withdrew)
Rebecca Šramková (first round)
Dalma Gálfi (quarterfinals) Jule Niemeier (quarterfinals)
Chloé Paquet (quarterfinals) Sofya Lansere (final) Ella Seidel (champion)
Lea Bošković (semifinals)| Semifinals | Final | ||||||||||||
| 7 | Ella Seidel | 78 | 3 | 6 | |||||||||
| 8 | Lea Bošković | 66 | 6 | 1 | |||||||||
| 7 | Ella Seidel | 6 | 77 | ||||||||||
| 6 | Sofya Lansere | 4 | 64 | ||||||||||
| 6 | Sofya Lansere | 7 | 6 | ||||||||||
| WC | Renáta Jamrichová | 5 | 3 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| LL |  A Laboutková | 2 | 3 | ||||||||||||||||||||||||
| Q | M Pohánková | 6 | 6 | Q | M Pohánková | 6 | 5 | 6 | |||||||||||||||||||
| Q | S Wagner | 6 | 6 | Q | S Wagner | 3 | 7 | 4 | |||||||||||||||||||
| Q | L Schmidt | 4 | 4 | Q | M Pohánková | 6 | 2 | 3 | |||||||||||||||||||
| E Yashina | 1 | 2 | 7 | E Seidel | 4 | 6 | 6 | ||||||||||||||||||||
 S Ambrosio | 6 | 6 | S Ambrosio | 65 | 6 | 2 | |||||||||||||||||||||
| WC | N Vargová | 5 | 2 | 7 | E Seidel | 77 | 4 | 6 | |||||||||||||||||||
| 7 | E Seidel | 7 | 6 | 7 | E Seidel | 78 | 3 | 6 | |||||||||||||||||||
| 4 | J Niemeier | 1 | 6 | 0 | 8 | L Bošković | 66 | 6 | 1 | ||||||||||||||||||
 M Kubka | 6 | 3 | 0r | 4 | J Niemeier | 6 | 7 | ||||||||||||||||||||
| AK Tóth | 0 | 3 |  A Aksu | 1 | 5 | ||||||||||||||||||||||
| A Aksu | 6 | 6 | 4 | J Niemeier | 1 | 77 | 2 | ||||||||||||||||||||
| LL | E Tóthová | 2 | 2 | 8 | L Bošković | 6 | 63 | 6 | |||||||||||||||||||
| J Malečková | 6 | 6 | J Malečková | 2 | 0 | ||||||||||||||||||||||
| Q | A Wirges | 2 | 4 | 8 | L Bošković | 6 | 6 | ||||||||||||||||||||
| 8 | L Bošković | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | S Lansere | 6 | 6 | ||||||||||||||||||||||||
| WC | K Kužmová | 0 | 3 | 6 | S Lansere | w/o | |||||||||||||||||||||
 A Kulikova | 77 | 6 | A Kulikova | ||||||||||||||||||||||||
 IG Ghioroaie | 63 | 4 | 6 | S Lansere | 4 | 6 | 6 | ||||||||||||||||||||
| N Bartůňková | 62 | 6 | 6 | 3 | D Gálfi | 6 | 3 | 3 | |||||||||||||||||||
| WC | E Méri | 77 | 1 | 3 | N Bartůňková | 4 | 5 | ||||||||||||||||||||
| Q | R Zelníčková | 4 | 5 | 3 | D Gálfi | 6 | 7 | ||||||||||||||||||||
| 3 | D Gálfi | 6 | 7 | 6 | S Lansere | 7 | 6 | ||||||||||||||||||||
| 5 | C Paquet | 79 | 6 | WC | R Jamrichová | 5 | 3 | ||||||||||||||||||||
| Q | V Olianovskaia | 67 | 2 | 5 | C Paquet | 6 | 6 | ||||||||||||||||||||
| A Kučmová | 6 | 6 | A Kučmová | 1 | 1 | ||||||||||||||||||||||
| Q | K Strešnáková | 2 | 2 | 5 | C Paquet | 5 | 77 | 4 | |||||||||||||||||||
| WC | R Jamrichová | 3 | 6 | 6 | WC | R Jamrichová | 7 | 65 | 6 | ||||||||||||||||||
| J Štruplová | 6 | 2 | 3 | WC | R Jamrichová | 3 | 6 | 6 | |||||||||||||||||||
| Q | A Ibragimova | 6 | 6 | Q | A Ibragimova | 6 | 2 | 3 | |||||||||||||||||||
| 2 | R Šramková | 1 | 3 | ||||||||||||||||||||||||
Jada Hart and Ena Shibahara were the defending champions, but both players were ineligible to participate.
Naiktha Bains and Francesca Di Lorenzo were the defending champions, but both players chose not to participate.
Maria Marfutina and Anastasia Zarycká were the defending champions, but Marfutina chose not to participate. Zarycká partnered Laura Ioana Paar but lost in the first round to Sofya Lansere and Kamilla Rakhimova.
Silvia Njirić and Dejana Radanović were the defending champions but chose not to participate.
Arina Rodionova and Storm Sanders were the defending champions having won the previous edition in 2019, however both players chose not to participate.
Marie Bouzková was the defending champion, having won the previous edition in 2019, however she chose to participate in Prague instead.
Marie Bouzková and Vivian Heisen were the defending champions, having won the previous edition in 2019, however both players chose not to participate.
Harriet Dart and Lesley Pattinama Kerkhove were the defending champions but Dart chose not to participate. Pattinama Kerkhove partnered alongside Bibiane Schoofs but lost in the quarterfinals to Marine Partaud and Ioana Loredana Roșca.
Sofya Lansere was the defending champion but lost in the first round to Eva Lys.
Anna Bondár and Tereza Mihalíková were the defending champions, but both players chose not to participate.
Estelle Cascino and Jessika Ponchet were the defending champions, but Cascino chose not to participate. Ponchet partnered with Renata Voráčová, but lost to Conny Perrin and Iryna Shymanovich in the semifinals.
Zheng Qinwen defeated Jasmine Paolini in the final, 6–4, 1–6, 6–1 to win the singles tennis title at the 2023 Internazionali Femminili di Palermo. It was Zheng's first WTA Tour singles title, and she was the first Chinese player to win the singles title at Palermo.
Irina Khromacheva and Diana Shnaider were the defending champions but chose not to participate.
Hsieh Yu-chieh and Jessy Rompies were the defending champions but Hsieh chose not to participate. Rompies partnered alongside Beatrice Gumulya, but they lost in the quarterfinals to Wang Xiyu and Yuan Yue.
Alena Fomina-Klotz and Dalila Jakupović were the defending champions but chose not to participate.
Andrea Gámiz and Andrea Lázaro García were the defending champions but chose not to participate.
Sofya Lansere and Anastasia Tikhonova were the defending champions but Lansere chose not to participate.
Gabriela Knutson was the defending champion but she lost to Katherine Sebov in the quarterfinals.
Yuliya Hatouka and Zhibek Kulambayeva were the defending champions but Hatouka chose not to participate. Kulambayeva partnered alongside Ekaterina Reyngold but lost in the quarterfinals to Matilde Paoletti and Beatrice Ricci.
Veronika Erjavec was the defending champion, but lost in the semifinals to Lucija Ćirić Bagarić.