The 2018 Libéma Open was a tennis tournament played on outdoor grass courts. It was the 29th edition of the event, and part of the 250 Series of the 2018 ATP World Tour, and of the WTA International tournaments of the 2018 WTA Tour. Both the men's and the women's events took place at the Autotron park in Rosmalen, 's-Hertogenbosch, Netherlands, from June 11 through June 17, 2018.[1]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 France | Adrian Mannarino | 26 | 1 | |
| Richard Gasquet | 32 | 2 | ||
| Gilles Müller | 34 | 3 | ||
| Fernando Verdasco | 35 | 4 | ||
| Stefanos Tsitsipas | 39 | 5 | ||
| Robin Haase | 44 | 6 | ||
| Yūichi Sugita | 48 | 7 | ||
| Andreas Seppi | 50 | 8 |
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
Alexandr Dolgopolov → replaced by 
Kevin King
John-Patrick Smith Ryan Harrison → replaced by 
Malek Jaziri Pierre-Hugues Herbert → replaced by Tim Smyczek
Filip Krajinović → replaced by 
Marius Copil
Karen Khachanov → replaced by Evgeny Donskoy
Yuki Bhambri
Andy Murray → replaced by 
Vasek Pospisil Tennys Sandgren → replaced by Jérémy Chardy| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
 Poland | Łukasz Kubot |  Brazil | Marcelo Melo | 7 | 1 | |
| Raven Klaasen |  New Zealand | Michael Venus | 46 | 2 | ||
| United Kingdom | Dominic Inglot | Franko Škugor | 82 | 3 | ||
| India | Divij Sharan | New Zealand | Artem Sitak | 89 | 4 |
The following pair received wildcards into the doubles main draw:
The following pair received entry as alternates:
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| CoCo Vandeweghe | 15 | 1 | ||
 Belgium | Elise Mertens | 16 | 2 | |
| Kiki Bertens | 22 | 3 | ||
 Estonia | Anett Kontaveit | 24 | 4 | |
 China | Zhang Shuai | 27 | 5 | |
| Belgium | Alison Van Uytvanck | 46 | 6 | |
| Serbia | Aleksandra Krunić | 47 | 7 | |
 Belarus | Aryna Sabalenka | 48 | 8 |
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Magda Linette → replaced by 
Tereza Martincová
Viktória Kužmová Lesia Tsurenko → replaced by Ekaterina Alexandrova| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Belgium | Elise Mertens | Demi Schuurs | 51 | 1 | ||
| Kiki Bertens | Belgium | Kirsten Flipkens | 56 | 2 | ||
| Lesley Kerkhove | Belarus | Lidziya Marozava | 114 | 3 | ||
| Xenia Knoll | United Kingdom | Anna Smith | 115 | 4 |
The following pairs received wildcards into the doubles main draw:
See main article: 2018 Libéma Open – Men's singles.
Richard Gasquet def. Jérémy Chardy, 6–3, 7–6(7–5)See main article: 2018 Libéma Open – Women's singles.
Aleksandra Krunić def. Kirsten Flipkens, 6–7(0–7), 7–5, 6–1See main article: 2018 Libéma Open – Men's doubles.
Dominic Inglot / Franko Škugor def. Raven Klaasen / Michael Venus, 7–6(7–3), 7–5See main article: 2018 Libéma Open – Women's doubles.
Elise Mertens / Demi Schuurs def. Kiki Bertens / Kirsten Flipkens, 3–3, retired.