The 2019 Halle Open (known for sponsorship reasons as the 2019 Noventi Open) was a tennis tournament played on outdoor grass courts. It was the 27th edition of the Halle Open and part of the ATP Tour 500 series of the 2019 ATP Tour. It took place at the Gerry Weber Stadion in Halle, Germany, between 17 June and 23 June 2019.
<sub>*per team</sub>
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:
The 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: