Defending champion Carlos Alcaraz[1] defeated Stefanos Tsitsipas in the final, 6–3, 6–4 to win the singles tennis title at the 2023 Barcelona Open. He did not lose a single set in the entire tournament.
Alcaraz was also the first Spaniard apart from Rafael Nadal to successfully defend the Barcelona Open title.
All seeds receive a bye into the second round.
Carlos Alcaraz (champion)
Stefanos Tsitsipas (final)
Casper Ruud (third round)
Jannik Sinner (quarterfinals, withdrew)
Frances Tiafoe (second round)
Karen Khachanov (third round)
Cameron Norrie (third round).svg/1280px-Flag_of_Australia_(converted).svg.png){kind=small}
Alex de Minaur (quarterfinals) Lorenzo Musetti (semifinals) Alejandro Davidovich Fokina (quarterfinals)
Grigor Dimitrov (third round, withdrew) Dan Evans (semifinals) Roberto Bautista Agut (third round).svg/1280px-Flag_of_Canada_(Pantone).svg.png){kind=small}
Denis Shapovalov (third round)
Francisco Cerúndolo (quarterfinals)
Yoshihito Nishioka (third round)Click on the seed number of a player to go to their draw section.
Matteo Arnaldi (qualified) Pavel Kotov (qualified)
Otto Virtanen (first round) Giulio Zeppieri (first round)
Hugo Grenier (qualifying competition) Raúl Brancaccio (first round)
Maximilian Marterer (first round)
Timofey Skatov (qualifying competition)
Jozef Kovalík (qualified) Benoît Paire (qualifying competition) Geoffrey Blancaneaux (qualifying competition)
Oleksii Krutykh (qualified)