2021 Sparkassen ATP Challenger

The 2021 Sparkassen ATP Challenger was a professional tennis tournament played on indoor hard courts in Ortisei, Italy between 8 and 14 November 2021. It was the twelfth edition of the tournament and was part of the 2021 ATP Challenger Tour.

Seeds

 * 1 Rankings are as of 1 November 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇮🇹 Matteo Arnaldi
 * 🇮🇹 Luca Nardi
 * 🇮🇹 Alexander Weis

The following players received entry from the qualifying draw:
 * 🇲🇩 Alexander Cozbinov
 * 🇧🇦 Nerman Fatić
 * 🇦🇹 Lucas Miedler
 * 🇩🇪 Tobias Simon

Singles

 * 🇩🇪 Oscar Otte def. 🇺🇸 Maxime Cressy 7–6(7–5), 6–4.

Doubles

 * Antonio Šančić / 🇦🇹 Tristan-Samuel Weissborn def. 🇦🇹 Alexander Erler / 🇦🇹 Lucas Miedler 7–6(10–8), 4–6, [10–8].