2021 Open 13 Provence
The 2021 Open 13 Provence was a men's tennis tournament played on indoor hard courts. It is the 29th edition of the Open 13, and part of the ATP Tour 250 series of the 2021 ATP Tour. It was the 29th edition of the tournament and took place at the Palais des Sports in Marseille, France, from 8 March until 14 March 2021. First-seeded Daniil Medvedev won the singles title.
Finals
Singles
- Daniil Medvedev defeated Pierre-Hugues Herbert, 6–4, 6–7, 6–4
Doubles
- Lloyd Glasspool / Harri Heliövaara defeated Sander Arends / David Pel, 7–5, 7–6
Singles main-draw entrants
Seeds
- Rankings are as of March 1, 2021.
Other entrants
The following player received entry using a protected ranking into the main draw:
The following players received entry from the qualifying draw:
- Matthew Ebden
- Constant Lestienne
- Alex Molčan
- Arthur Rinderknech
Withdrawals
- Aljaž Bedene → replaced by Mackenzie McDonald
- Matteo Berrettini → replaced by Mikhail Kukushkin
- Marin Čilić → replaced by Cameron Norrie
- Kyle Edmund → replaced by Egor Gerasimov
- Gilles Simon → replaced by Lucas Pouille
- Jan-Lennard Struff → replaced by Emil Ruusuvuori
- Fernando Verdasco → replaced by Pierre-Hugues Herbert
- Jiří Veselý → replaced by Grégoire Barrère
Retirements
- Matthew Ebden
Doubles main-draw entrants
Seeds
- 1 Rankings are as of 1 March 2021.
Other entrants
- Albano Olivetti / Jo-Wilfried Tsonga
- Petros Tsitsipas / Stefanos Tsitsipas
Withdrawals
- Sander Gillé / Joran Vliegen → replaced by Purav Raja / Tristan-Samuel Weissborn
- Roman Jebavý / Jiří Veselý → replaced by Benjamin Bonzi / Antoine Hoang
- Matthew Ebden / John-Patrick Smith → replaced by Matthew Ebden / Matt Reid