2023 Sofia Open

The 2023 Sofia Open was a men's tennis tournament to be played on indoor hard courts. It was the eighth edition of the event and it was part of the ATP 250 tournaments on the 2023 ATP Tour. It was played at the Arena Sofia in Sofia, Bulgaria, from 6 November to 11 November 2023. The tournament replaced the 2023 edition of the Tel Aviv Open, which was canceled due to the 2023 Israel–Hamas war.

Singles

 * 🇫🇷 Adrian Mannarino def. 🇬🇧 Jack Draper, 7–6(8–6), 2–6, 6–3

Doubles

 * 🇪🇨 Gonzalo Escobar / 🇰🇿 Aleksandr Nedovyesov def. 🇬🇧 Julian Cash / Nikola Mektić 6–3, 3–6, [13–11]

Seeds

 * 1 Rankings are as of 30 October 2023.

Other entrants
The following players received wildcards into the main draw:
 * 🇹🇷 Cem İlkel
 * 🇧🇬 Alexandar Lazarov
 * 🇧🇬 Dimitar Kuzmanov

The following players received entry from the qualifying draw:
 * 🇫🇷 Térence Atmane
 * 🇬🇧 Billy Harris
 * Marc-Andrea Hüsler
 * 🇺🇦 Vitaliy Sachko

The following player received entry as a lucky loser:
 * 🇺🇸 Nicolas Moreno de Alboran

Withdrawals

 * 🇪🇸 Alejandro Davidovich Fokina → replaced by 🇭🇺 Fábián Marozsán
 * 🇷🇸 Laslo Djere → replaced by 🇦🇹 Jurij Rodionov
 * 🇦🇷 Tomás Martín Etcheverry → replaced by 🇷🇸 Hamad Medjedovic
 * 🇺🇸 Taylor Fritz → replaced by 🇭🇺 Zsombor Piros
 * 🇺🇸 Sebastian Korda → replaced by 🇬🇧 Jack Draper
 * 🇺🇸 Mackenzie McDonald → replaced by 🇪🇸 Albert Ramos Viñolas
 * 🇦🇺 Alexei Popyrin → replaced by 🇺🇸 Nicolas Moreno de Alboran
 * 🇺🇸 Ben Shelton → replaced by 🇦🇺 Christopher O'Connell
 * 🇺🇸 Frances Tiafoe → replaced by 🇩🇪 Maximilian Marterer
 * 🇦🇺 Aleksandar Vukic → replaced by 🇪🇸 Roberto Carballés Baena

Seeds

 * 1 Rankings are as of 30 October 2023.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇧🇬 Alexander Donski / 🇧🇬 Alexandar Lazarov
 * 🇧🇬 Petr Nesterov / 🇧🇬 Yanaki Milev

The following pair received entry as alternates:
 * 🇪🇸 Íñigo Cervantes / 🇪🇸 David Vega Hernández

Withdrawals

 * 🇦🇷 Máximo González / 🇦🇷 Andrés Molteni → replaced by 🇪🇸 Íñigo Cervantes / 🇪🇸 David Vega Hernández
 * 🇪🇸 Marcel Granollers / 🇦🇷 Horacio Zeballos → replaced by 🇷🇸 Nikola Ćaćić / 🇦🇹 Philipp Oswald
 * 🇺🇸 Mackenzie McDonald / 🇧🇷 Marcelo Melo → replaced by 🇺🇸 Evan King / 🇺🇸 Reese Stalder
 * 🇦🇺 Max Purcell / 🇦🇺 Jordan Thompson → replaced by 🇦🇺 Max Purcell / 🇦🇺 John-Patrick Smith