2021 Città di Forlì III

Country	Player	Rank1	Seed
USA	Maxime Cressy	122	1
ITA	Federico Gaio	153	2
ITA	Salvatore Caruso	157	3
BEL	Zizou Bergs	185	4
BIH	Mirza Bašić	231	5
UKR	Vitaliy Sachko	260	6
ITA	Andrea Vavassori	262	7
ITA	Andrea Arnaboldi	266	8

• ¹ Rankings as of 29 November 2021.^[1]

The following players received wildcards into the singles main draw:

• Matteo Gigante
• Luca Nardi
• Lukáš Rosol

The following players received entry into the singles main draw using protected rankings:

• Filippo Baldi
• Julian Lenz

The following player received entry into the singles main draw as an alternate:

• Valentin Vacherot

The following players received entry from the qualifying draw:

• Daniele Capecchi
• Savriyan Danilov
• Luca Potenza
• Keegan Smith

• Pavel Kotov def. Andrea Arnaboldi 6–4, 6–3.

• Alexander Erler / Lucas Miedler def. Marco Bortolotti / Sergio Martos Gornés 6–4, 6–2.