The 2016 German Open was a men's tennis tournament played on outdoor red clay courts. It was the 110th edition of the German Open and part of the ATP World Tour 500 series of the 2016 ATP World Tour. It took place at the Am Rothenbaum in Hamburg, Germany, from 11 July until 17 July 2016. Seventh-seeded Martin Kližan won the singles title.
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Kevin Anderson →replaced by 
Mikhail Youzhny
Roberto Bautista Agut →replaced by 
Stéphane Robert Pablo Carreño Busta →replaced by 
Jan-Lennard Struff
Federico Delbonis →replaced by 
Thomas Fabbiano Fabio Fognini →replaced by 
Igor Sijsling
Malek Jaziri →replaced by Carlos Berlocq Juan Mónaco →replaced by Máximo González Guido Pella →replaced by 
Gerald Melzer Lucas Pouille →replaced by Mischa Zverev
Lukáš Rosol →replaced by Kenny de Schepper Dominic Thiem →replaced by Renzo Olivo Jiří Veselý →replaced by 
Grega ŽemljaThe following pairs received wildcards into the doubles main draw:
The following pair received entry from the qualifying draw:
The following pair received entry as lucky losers:
Florian Mayer (illness)
Martin Kližan defeated 
Pablo Cuevas, 6–1, 6–4
Henri Kontinen / .svg/1280px-Flag_of_Australia_(converted).svg.png){kind=small}
John Peers defeated .svg/1280px-Flag_of_Canada_(Pantone).svg.png){kind=small}
Daniel Nestor / 
Aisam-ul-Haq Qureshi, 7–5, 6–3