2021 Sparkassen ATP Challenger
Date	8–14 November
Edition	12th
Surface	Hard (Indoor)
Location	Ortisei, Italy
Champions
Singles
Oscar Otte
Doubles
Antonio Šančić / Tristan-Samuel Weissborn
← 2020 · Sparkassen ATP Challenger · 2022 →

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.

Country	Player	Rank1	Seed
GER	Oscar Otte	126	1
USA	Maxime Cressy	133	2
FRA	Quentin Halys	146	3
ECU	Emilio Gómez	149	4
ITA	Federico Gaio	151	5
ESP	Fernando Verdasco	165	6
SUI	Marc-Andrea Hüsler	186	7
ITA	Alessandro Giannessi	192	8

• ¹ Rankings are as of 1 November 2021.^[1]

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

• Oscar Otte def. Maxime Cressy 7–6^(7–5), 6–4.

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