2025 BOSS Open

The 2025 BOSS Open was a men's tennis tournament played on outdoor grass courts. It was the 47th edition of the Stuttgart Open and an ATP 250 tournament of the 2025 ATP Tour. It was held at the Tennis Club Weissenhof in Stuttgart, Germany, from 9 June until 15 June 2025.

Champions

Singles

Taylor Fritz def. Alexander Zverev, 6–3, 7–6

Doubles

Santiago González / Austin Krajicek def. Alex Michelsen / Rajeev Ram, 6–4, 6–4

Singles main draw entrants

Seeds

Rankings are as of 26 May 2025.

Other entrants

The following players received wildcards into the main draw:

The following players received entry from the qualifying draw:

Withdrawals

Matteo Berrettini → replaced by Roman Safiullin
Nick Kyrgios → replaced by Corentin Moutet
Lorenzo Musetti → replaced by Yoshihito Nishioka
Tommy Paul → replaced by Jacob Fearnley
Frances Tiafoe → replaced by Benjamin Bonzi

Doubles main draw entrants

Seeds

Rankings are as of 26 May 2025.

Other entrants

The following pairs received wildcards into the doubles main draw:

Withdrawals

Marcelo Arévalo / Mate Pavić → replaced by Jakob Schnaitter / Mark Wallner
Simone Bolelli / Andrea Vavassori → replaced by Sriram Balaji / Miguel Ángel Reyes-Varela
Christian Harrison / Evan King → replaced by Santiago González / Austin Krajicek
Lorenzo Musetti / Lorenzo Sonego → replaced by Matteo Arnaldi / Lorenzo Sonego