2021 WTA Argentina Open

The 2021 WTA Argentina Open was a professional tennis tournament played on outdoor clay courts. It was the first edition of the tournament since 1987 and first as part of the 2021 WTA 125 tournaments. It took place at the Buenos Aires Lawn Tennis Club in Buenos Aires, Argentina between 1 and 7 November 2021.

Seeds

 * 1 Rankings are as of 25 October 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇦🇷 Julieta Estable
 * 🇦🇷 Sofía Luini
 * 🇦🇷 Jazmín Ortenzi
 * 🇦🇷 Solana Sierra

The following players received entry from the qualifying draw:
 * 🇦🇷 María Victoria Burstein
 * 🇦🇷 Martina Capurro Taborda
 * 🇦🇷 Sol Faga
 * 🇦🇷 Luciana Moyano

Withdrawals

 * Before the tournament
 * Susan Bandecchi → replaced by 🇪🇸 Irene Burillo Escorihuela
 * Indy de Vroome → replaced by 🇩🇪 Katharina Gerlach
 * 🇮🇹 Federica Di Sarra → replaced by 🇷🇺 Elina Avanesyan
 * Jana Fett → replaced by 🇧🇷 Laura Pigossi
 * 🇦🇹 Julia Grabher → replaced by 🇦🇷 María Lourdes Carlé
 * Ylena In-Albon → replaced by 🇪🇸 Andrea Lázaro García
 * Leonie Küng → replaced by Bárbara Gatica
 * 🇷🇴 Gabriela Lee → replaced by 🇦🇩 Victoria Jiménez Kasintseva
 * 🇦🇺 Seone Mendez → replaced by 🇨🇳 You Xiaodi
 * Tereza Mrdeža → replaced by 🇨🇴 Emiliana Arango
 * 🇲🇽 Renata Zarazúa → replaced by 🇧🇷 Carolina Alves

Seeds

 * Rankings are as of October 25, 2021

Other entrants
The following pairs received a wildcard into the doubles main draw:
 * 🇦🇷 Marina Bulbarella / 🇦🇷 María Victoria Burstein
 * 🇦🇷 Martina Capurro Taborda / 🇦🇷 Luciana Moyano
 * 🇦🇷 Martina Roldán Santander / 🇦🇷 Merlina Sarno

Singles

 * 🇭🇺 Anna Bondár def. 🇫🇷 Diane Parry 6–3, 6–3

Doubles

 * 🇷🇴 Irina Bara / Ekaterine Gorgodze def. 🇦🇷 María Lourdes Carlé /  Despina Papamichail 5–7, 7–5, [10–4]