| Date: | November 20 – 26 |
| Edition: | 5th |
| Category: | WTA 125 |
| Draw: | 32S / 16D |
| Prize Money: | $115,000 |
| Surface: | Clay |
| Location: | Florianópolis, Brazil |
| Venue: | Jurerê Sports Center |
| Champs: |  Ajla Tomljanović |
| Champd: |  Sara Errani /  Léolia Jeanjean |
| Before Year: | 2016 |
| Before Name: | Brasil Tennis Cup |
The 2023 MundoTenis Open was a professional women's tennis tournament played on outdoor clay courts. It was the first edition of the tournament, a WTA 125 event of the WTA 125 season and the fifth of the Brasil Tennis Cup to take place in Florianópolis, Brazil from November 20 to 26, 2023. The tournament was last held in 2016 before the Rio Olympics as a WTA International tournament.[1]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 United States | Emma Navarro | 33 | 1 | |
| Diana Shnaider | 62 | 2 | ||
 Argentina | Nadia Podoroska | 78 | 3 | |
| Italy | Sara Errani | 100 | 4 | |
| France | Diane Parry | 104 | 5 | |
 Hungary | Anna Bondár | 113 | 6 | |
| Hungary | Panna Udvardy | 117 | 7 | |
| United States | Elizabeth Mandlik | 125 | 8 |
The following players received wildcards into the singles main draw:
Carolina Alves Carolina Bohrer Martins Gabriela Cé Emma Navarro Ajla TomljanovićThe following players received entry from the qualifying draw:
| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Amina Anshba | United States | Quinn Gleason | 194 | 1 | ||
| United States | United States | |||||
 United Kingdom | Freya Christie |  Colombia | Yuliana Lizarazo | 252 | 3 | |
| Colombia | María Paulina Pérez García | United States | Sofia Sewing | 272 | 4 |
See main article: 2023 MundoTenis Open – Singles.
Ajla Tomljanović def. Martina Capurro Taborda, 6–1, 7–5See main article: 2023 MundoTenis Open – Doubles.
Sara Errani / Léolia Jeanjean def. Julia Lohoff / Conny Perrin, 7–5, 3–6, [10–7]