| Date: | 15 – 21 July |
| Draw: | 48S / 4Q / 16D |
| Surface: | Clay / outdoor |
| Location: | Amersfoort, Netherlands |
| Champs: | Mats Moraing |
| Champd: |  Harri Heliövaara / Emil Ruusuvuori |
| Main Name: | Dutch Open (tennis) |
| Before Year: | 2008 |
| After Year: | 2021 |
| After Name: | Dutch Open (tennis) |
The 2019 Dutch Open, also known by its sponsored name Van Mossel Kia Dutch Open, was a professional tennis tournament played on clay courts. It was the first edition of the Challenger tournament which was part of the 2019 ATP Challenger Tour. It took place in Amersfoort, Netherlands between 15 and 21 July 2019.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Spain | Pedro Martínez | 126 | 1 | |
 Belgium | Kimmer Coppejans | 144 | 2 | |
| Blaž Rola | 163 | 3 | ||
| Tallon Griekspoor | 198 | 4 | ||
| Mats Moraing | 206 | 5 | ||
 France | Elliot Benchetrit | 218 | 6 | |
 Egypt | Mohamed Safwat | 231 | 7 | |
| Spain | Nicola Kuhn | 238 | 8 | |
 Czech Republic | Zdeněk Kolář | 242 | 9 | |
| Spain | Daniel Gimeno Traver | 244 | 10 | |
| Daniel Masur | 249 | 11 | ||
 Brazil | Thomaz Bellucci | 258 | 12 | |
 Belarus | Uladzimir Ignatik | 261 | 13 | |
| Thiemo de Bakker | 265 | 14 | ||
| Tobias Kamke | 266 | 15 | ||
| France | Johan Tatlot | 279 | 16 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw using a protected ranking:
The following players received entry into the singles main draw using their ITF World Tennis Ranking:
Corentin Denolly Christopher Heyman Karim-Mohamed MaamounThe following players received entry from the qualifying draw:
See main article: 2019 Dutch Open – Singles.
Kimmer Coppejans 6–2, 3–6, 6–3.See main article: 2019 Dutch Open – Doubles.
Harri Heliövaara / Emil Ruusuvuori def. Jesper de Jong / Ryan Nijboer 6–3, 6–4.