2023 Upper Austria Open

The 2023 Danube Upper Austria Open was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Mauthausen, Austria between 8 and 14 May 2023.

2023 Upper Austria Open
Date	8–14 May
Edition	2nd
Surface	Clay
Location	Mauthausen, Austria
Champions
Singles
Hamad Međedović
Doubles
Romain Arneodo / Sam Weissborn

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
AUT	Dominic Thiem	93	1
FRA	Hugo Gaston	106	2
ARG	Facundo Bagnis	116	3
NED	Gijs Brouwer	122	4
AUT	Filip Misolic	126	5
AUT	Sebastian Ofner	130	6
SUI	Leandro Riedi	156	7
AUT	Dennis Novak	159	8

• ¹ Rankings as of 24 April 2023.^[1]

Other entrants

The following players received wildcards into the singles main draw:

• Sandro Kopp
• Gerald Melzer
• Lukas Neumayer

The following players received entry into the singles main draw as alternates:

• Manuel Guinard
• Alexandar Lazarov
• James McCabe
• Louis Wessels

The following players received entry from the qualifying draw:

• Mirza Bašić
• Marius Copil
• Lucas Gerch
• Hendrik Jebens
• Matthias Ujvary
• Damien Wenger

Champions

Singles

Main article: 2023 Upper Austria Open – Singles

• Hamad Međedović def. Filip Misolic 6–2, 6–7^(5–7), 6–4.

Doubles

Main article: 2023 Upper Austria Open – Doubles

• Romain Arneodo / Sam Weissborn def. Constantin Frantzen / Hendrik Jebens 6–4, 6–2.