2019 Argentina Open

The 2019 Argentina Open was a men's tennis tournament played on outdoor clay courts. It was the 22nd edition of the ATP Buenos Aires event, and part of the ATP Tour 250 series of the 2019 ATP Tour. It took place in Buenos Aires, Argentina, from February 11 through 17, 2019.

Seeds

 * 1 Rankings are as of February 4, 2019.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇦 Félix Auger-Aliassime
 * 🇦🇷 Francisco Cerúndolo
 * 🇪🇸 David Ferrer

The following player received entry as a special exempt:
 * 🇦🇷 Juan Ignacio Londero

The following players received entry from the qualifying draw:
 * Marcelo Arévalo
 * 🇦🇷 Facundo Bagnis
 * 🇧🇷 Rogério Dutra Silva
 * 🇮🇹 Lorenzo Sonego

Withdrawals

 * Before the tournament
 * 🇪🇸 Pablo Carreño Busta → replaced by Christian Garín

Seeds

 * 1 Rankings are as of February 4, 2019.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇦🇷 Federico Delbonis / 🇦🇷 Guillermo Durán
 * 🇧🇪 Sander Gillé / 🇧🇪 Joran Vliegen

Singles

 * 🇮🇹 Marco Cecchinato defeated 🇦🇷 Diego Schwartzman, 6–1, 6–2

Doubles

 * 🇦🇷 Máximo González / 🇦🇷 Horacio Zeballos defeated 🇦🇷 Diego Schwartzman / 🇦🇹 Dominic Thiem, 6–1, 6–1