2021 Città di Forlì III

The 2021 Città di Forlì III was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Forlì, Italy between 6 and 12 December 2021.

Seeds

 * 1 Rankings as of 29 November 2021.

Other entrants
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

Singles

 * 🇷🇺 Pavel Kotov def. 🇮🇹 Andrea Arnaboldi 6–4, 6–3.

Doubles

 * 🇦🇹 Alexander Erler / 🇦🇹 Lucas Miedler def. 🇮🇹 Marco Bortolotti / 🇪🇸 Sergio Martos Gornés 6–4, 6–2.