2021 Biella Challenger V

The 2021 Biella Challenger V was a professional tennis tournament played on outdoor red clay courts. It was part of the 2021 ATP Challenger Tour. It took place in Biella, Italy between 3 and 9 May 2021.

Seeds

 * Rankings are as of 26 April 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇷🇸 Hamad Međedović
 * 🇮🇹 Stefano Napolitano
 * 🇮🇹 Luca Vanni

The following player received entry into the singles main draw using a protected ranking:
 * 🇦🇺 Thanasi Kokkinakis

The following players received entry into the singles main draw as alternates:
 * 🇬🇧 Jay Clarke
 * 🇦🇷 Andrea Collarini
 * 🇦🇺 Aleksandar Vukic

The following players received entry from the qualifying draw:
 * 🇦🇷 Guido Andreozzi
 * Viktor Galović
 * 🇩🇪 Maximilian Marterer
 * 🇧🇷 Felipe Meligeni Alves

The following players received entry as lucky losers:
 * Marcelo Tomás Barrios Vera
 * 🇧🇬 Dimitar Kuzmanov

Singles

 * 🇵🇪 Juan Pablo Varillas def. 🇦🇷 Guido Andreozzi 6–3, 6–1.

Doubles

 * 🇸🇪 André Göransson / 🇺🇸 Nathaniel Lammons def. 🇧🇷 Rafael Matos / 🇧🇷 Felipe Meligeni Alves 7–6(7–3), 6–3.