2021 Antalya Open

The 2021 Antalya Open was a men's tennis tournament played on outdoor hard courts. It was the 4th edition of the event and part of the ATP Tour 250 series of the 2021 ATP Tour. The tournament took place in Antalya, Turkey, from January 7 to 13.

Prize money

 * per team

Seeds

 * Rankings are as of January 4, 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇹🇷 Altuğ Çelikbilek
 * 🇹🇷 Marsel İlhan
 * 🇹🇷 Ergi Kırkın

The following players received entry from the qualifying draw:
 * 🇧🇬 Adrian Andreev
 * 🇩🇪 Matthias Bachinger
 * 🇷🇺 Pavel Kotov
 * 🇧🇬 Dimitar Kuzmanov
 * 🇸🇰 Alex Molčan
 * 🇨🇿 Michael Vrbenský

Withdrawals

 * Before the tournament
 * 🇮🇹 Marco Cecchinato → replaced by 🇵🇱 Kacper Żuk
 * Borna Ćorić → replaced by 🇫🇷 Tristan Lamasine
 * Lloyd Harris → replaced by 🇪🇸 Nicola Kuhn
 * 🇫🇷 Benoît Paire → replaced by 🇮🇹 Andrea Arnaboldi
 * 🇮🇹 Jannik Sinner → replaced by 🇹🇳 Malek Jaziri
 * João Sousa → replaced by 🇫🇷 Hugo Grenier
 * During the tournament
 * 🇫🇷 Hugo Grenier

Seeds

 * Rankings are as of January 4, 2021.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇹🇷 Umut Akkoyun / 🇹🇷 Mert Naci Türker
 * 🇹🇷 Tuna Altuna / 🇹🇷 Altuğ Çelikbilek

Withdrawals

 * Before the tournament
 * Sander Arends / Matwé Middelkoop → replaced by  Luca Margaroli / 🇷🇴 Florin Mergea
 * 🇮🇹 Matteo Berrettini / 🇮🇹 Jannik Sinner → replaced by 🇺🇦 Denys Molchanov / 🇰🇿 Aleksandr Nedovyesov
 * 🇧🇦 Tomislav Brkić / 🇵🇰 Aisam-ul-Haq Qureshi → replaced by Ivan Sabanov /  Matej Sabanov
 * Lloyd Harris / David Pel → replaced by 🇨🇿 Jiří Veselý / 🇦🇹 Tristan-Samuel Weissborn
 * 🇫🇷 Benoît Paire / 🇮🇹 Stefano Travaglia → replaced by 🇫🇮 Harri Heliövaara / 🇫🇮 Emil Ruusuvuori

Singles

 * 🇦🇺 Alex de Minaur def. 🇰🇿 Alexander Bublik, 2-0 ret.

Doubles

 * Nikola Mektić / Mate Pavić def.  Ivan Dodig / 🇸🇰 Filip Polášek, 6–2, 6–4