2021 Biella Challenger VI

The 2021 Biella Challenger VI was a professional tennis tournament played on outdoor red clay courts. It was part of the 2021 ATP Challenger Tour. It took in Biella, Italy between 17 and 23 May 2021.

Seeds

 * Rankings are as of 10 May 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇮🇹 Flavio Cobolli
 * 🇮🇹 Paolo Lorenzi
 * 🇮🇹 Stefano Napolitano

The following players received entry from the qualifying draw:
 * 🇮🇹 Riccardo Bonadio
 * 🇦🇷 Tomás Martín Etcheverry
 * 🇮🇹 Omar Giacalone
 * Tim van Rijthoven

Singles

 * 🇦🇺 Thanasi Kokkinakis def. 🇫🇷 Enzo Couacaud 6–3, 6–4.

Doubles

 * 🇺🇸 Evan King / 🇩🇪 Julian Lenz def. 🇵🇱 Karol Drzewiecki / 🇪🇸 Sergio Martos Gornés 3–6, 6–3, [11–9].