2018 Argentina Open
The 2018 Argentina Open was a men's tennis tournament played on outdoor clay courts. It was the 21st edition of the ATP Buenos Aires event, and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place in Buenos Aires, Argentina, from February 12 through 18, 2018.
Singles main-draw entrants
Seeds
1 Rankings are as of February 5, 2018.Other entrants
The following players received wildcards into the singles main draw:The following players received entry as special exempts:
The following players received entry using a protected ranking:
The following players received entry from the qualifying draw:
Withdrawals
;Before the tournament- Marin Čilić → replaced by Guillermo García López
- Alexandr Dolgopolov → replaced by Florian Mayer
- Kyle Edmund → replaced by Gastão Elias
- Paolo Lorenzi → replaced by Dušan Lajović
Doubles main-draw entrants
Seeds
1 Rankings are as of February 5, 2018.Other entrants
The following pairs received wildcards into the doubles main draw:Withdrawals
;During the tournamentFinals
Singles
- Dominic Thiem defeated Aljaž Bedene, 6–2, 6–4
Doubles
- Andrés Molteni / Horacio Zeballos defeated Juan Sebastián Cabal / Robert Farah, 6–3, 5–7,