2013 Gerry Weber Open – Singles
Tommy Haas was the defending champion but was knocked out by top seed Roger Federer in the semifinals.
Federer won 6–7, 6–3, 6–4 against Mikhail Youzhny to claim a record sixth title and his first since 2008.
Seeds
The top four seeds received a bye into the second round.Qualifying
Seeds
The top three seeds received byes into the second round.Lucky losers
- ''' Mirza Bašić'''