2023 Sardegna Open

Country	Player	Rank1	Seed
JPN	Yoshihito Nishioka	34	1
USA	Ben Shelton	38	2
USA	Mackenzie McDonald	54	3
SRB	Laslo Djere	70	4
ARG	Diego Schwartzman	72	5
FRA	Ugo Humbert	77	6
ITA	Marco Cecchinato	85	7
BRA	Thiago Monteiro	97	8

• ¹ Rankings as of 24 April 2023.^[1]

The following players received wildcards into the singles main draw:

• Flavio Cobolli
• Francesco Maestrelli
• Andrea Vavassori

The following players received entry into the singles main draw as alternates:

• Mattia Bellucci
• Jozef Kovalík
• Fábián Marozsán
• Luca Nardi

The following players received entry from the qualifying draw:

• Steven Diez
• Alessandro Giannessi
• Gianluca Mager
• Stefano Travaglia

The following player received entry as a lucky loser:

• Andrea Pellegrino

• Ugo Humbert def. Laslo Djere 4–6, 7–5, 6–4.

• Alexander Erler / Lucas Miedler def. Máximo González / Andrés Molteni 7–6^(8–6), 6–3.