2018 BMW Open

The 2018 BMW Open was a men's tennis tournament played on outdoor clay courts. It was the 103rd edition of the event, and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place at the MTTC Iphitos complex in Munich, Germany, from 30 April until 6 May 2018.

Seeds

 * Rankings are as of April 23, 2018.

Other entrants
The following players received wildcards into the main draw:
 * 🇩🇪 Matthias Bachinger
 * 🇩🇪 Yannick Hanfmann
 * 🇳🇴 Casper Ruud

The following players received entry as special exempts:
 * 🇮🇹 Marco Cecchinato
 * 🇩🇪 Yannick Maden

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

The following players received entry from the qualifying draw:
 * 🇩🇪 Dustin Brown
 * 🇷🇴 Marius Copil
 * 🇸🇰 Martin Kližan
 * 🇩🇪 Daniel Masur

Withdrawals

 * Before the tournament
 * 🇷🇺 Andrey Rublev → replaced by 🇰🇿 Mikhail Kukushkin

Retirements

 * 🇩🇪 Dustin Brown

Seeds

 * Rankings are as of April 23, 2018.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇩🇪 Matthias Bachinger / 🇩🇪 Yannick Hanfmann
 * 🇦🇹 Jürgen Melzer / 🇩🇪 Philipp Petzschner

The following pair received entry as alternates:
 * 🇩🇪 Daniel Masur / 🇩🇪 Rudolf Molleker

Withdrawals

 * Before the tournament
 * 🇦🇹 Julian Knowle

Singles

 * 🇩🇪 Alexander Zverev def. 🇩🇪 Philipp Kohlschreiber, 6–3, 6–3

Doubles

 * Ivan Dodig / 🇺🇸 Rajeev Ram def. Nikola Mektić / 🇦🇹 Alexander Peya, 6–3, 7–5