2021 Vesuvio Cup

The 2021 Vesuvio Cup was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Ercolano, Italy between 11 and 17 October 2021.

Seeds

 * 1 Rankings are as of 4 October 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇮🇹 Matteo Arnaldi
 * 🇮🇹 Jacopo Berrettini
 * 🇮🇹 Raúl Brancaccio

The following player received entry into the singles main draw using a protected ranking:
 * 🇮🇹 Filippo Baldi

The following player received entry into the singles main draw as an alternate:
 * 🇮🇹 Andrea Arnaboldi

The following players received entry from the qualifying draw:
 * 🇮🇹 Luciano Darderi
 * 🇨🇿 Jonáš Forejtek
 * 🇪🇸 Álvaro López San Martín
 * 🇺🇸 Alexander Ritschard

The following player received entry as a lucky loser:
 * 🇫🇷 Evan Furness

Singles

 * Tallon Griekspoor def. 🇺🇸 Alexander Ritschard 6–3, 6–2.

Doubles

 * 🇮🇹 Marco Bortolotti / 🇪🇸 Sergio Martos Gornés def. 🇩🇪 Dustin Brown / 🇮🇹 Andrea Vavassori 6–4, 3–6, [10–7].