2021 NÖ Open
{{Infobox tennis event|2021|NÖ Open|
| date=6–12 September
| edition=1st
| surface=Clay
| location=Tulln an der Donau, Austria
| champs={{flagicon|GER}} Mats Moraing
| champd={{flagicon|GER}} Dustin Brown / {{flagicon|ITA}} Andrea Vavassori
}}
The 2021 NÖ Open 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 Tulln an der Donau, Austria between 6 and 12 September 2021.
Singles main-draw entrants
=Seeds=
| class="sortable wikitable" |
| width="70"| Country
! width="175"| Player ! Rank1 ! Seed |
|---|
| {{flag|ITA}}
|81 |1 |
| {{flag|CZE}}
|90 |2 |
| {{flag|BRA}}
|93 |3 |
| {{flag|POL}}
|114 |4 |
| {{flag|SVK}}
|118 |5 |
| {{flag|BIH}}
|120 |6 |
| {{flag|AUT}}
|125 |7 |
| {{flag|FRA}}
|127 |8 |
- 1 Rankings are as of 30 August 2021.{{Cite web|url=http://www.atptour.com/en/rankings/singles|title=Rankings | Singles | ATP Tour | Tennis|website=ATP Tour}}
=Other entrants=
The following players received wildcards into the singles main draw:
- {{flagicon|AUT}} Gerald Melzer
- {{flagicon|AUT}} Filip Misolic
- {{flagicon|AUT}} Lukas Neumayer
The following players received entry into the singles main draw as alternates:
- {{flagicon|GER}} Johannes Härteis
- {{flagicon|AUT}} Lucas Miedler
The following players received entry from the qualifying draw:
- {{flagicon|GER}} Benjamin Hassan
- {{flagicon|BLR}} Uladzimir Ignatik
- {{flagicon|FRA}} Matteo Martineau
- {{flagicon|AUT}} Neil Oberleitner
Champions
=Singles=
{{main|2021 NÖ Open – Singles}}
- {{flagicon|GER}} Mats Moraing def. {{flagicon|FRA}} Hugo Gaston 6–2, 6–1.
=Doubles=
{{main|2021 NÖ Open – Doubles}}
- {{flagicon|GER}} Dustin Brown / {{flagicon|ITA}} Andrea Vavassori def. {{flagicon|BRA}} Rafael Matos / {{flagicon|BRA}} Felipe Meligeni Alves 7–6(7–5), 6–1.
References
{{reflist}}
{{2021 ATP Challenger Tour}}
{{DEFAULTSORT:NO Open, 2021}}