2017 German Open

The 2017 German Open (also known as the 2017 German Tennis Championships) was a men's tennis tournament played on outdoor red clay courts. It was the 111th edition of the German Open Tennis Championships and part of the ATP World Tour 500 series of the 2017 ATP World Tour. It took place at the Am Rothenbaum in Hamburg, Germany, from 24 July until 30 July 2017. Unseeded Leonardo Mayer, who entered the main draw as a lucky loser, won the singles draw.

Seeds

 * 1 Rankings are as of July 17, 2017

Other entrants
The following players received wildcards into the singles main draw:
 * 🇩🇪 Daniel Altmaier
 * 🇩🇪 Tommy Haas
 * 🇩🇪 Maximilian Marterer

The following players received entry using a protected ranking:
 * 🇦🇹 Andreas Haider-Maurer
 * 🇷🇺 Dmitry Tursunov

The following player received entry as a special exempt:
 * 🇷🇺 Andrey Rublev

The following players received entry from the qualifying draw:
 * 🇦🇷 Federico Delbonis
 * 🇧🇦 Damir Džumhur
 * 🇩🇪 Rudolf Molleker
 * 🇩🇪 Cedrik-Marcel Stebe

The following players received entry as lucky losers:
 * 🇩🇴 José Hernández-Fernández
 * 🇦🇷 Leonardo Mayer

Withdrawals

 * Before the tournament
 * 🇪🇸 Pablo Carreño Busta →replaced by 🇷🇺 Andrey Kuznetsov
 * Borna Ćorić →replaced by 🇦🇷 Nicolás Kicker
 * 🇧🇷 Rogério Dutra Silva →replaced by 🇩🇴 José Hernández-Fernández
 * 🇫🇷 Richard Gasquet →replaced by 🇷🇺 Dmitry Tursunov
 * 🇸🇰 Martin Kližan →replaced by 🇦🇷 Leonardo Mayer
 * 🇯🇵 Yūichi Sugita →replaced by 🇧🇷 Rogério Dutra Silva
 * 🇷🇸 Janko Tipsarević →replaced by 🇷🇺 Evgeny Donskoy

Seeds

 * Rankings are as of July 17, 2017

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇩🇪 Daniel Altmaier / 🇩🇪 Tommy Haas
 * 🇩🇪 Kevin Krawietz / 🇩🇪 Tim Pütz

The following pair received entry from the qualifying draw:
 * 🇦🇷 Federico Delbonis / 🇦🇷 Leonardo Mayer

Withdrawals

 * During the tournament
 * 🇧🇷 Rogério Dutra Silva
 * 🇪🇸 Fernando Verdasco

Singles

 * 🇦🇷 Leonardo Mayer defeated 🇩🇪 Florian Mayer 6–4, 4–6, 6–3.

Doubles

 * Ivan Dodig / Mate Pavić defeated  Pablo Cuevas / 🇪🇸 Marc López 6–3, 6–4.