The 2019 Stockholm Open (also known as the Intrum Stockholm Open for sponsorship purposes) was a professional men's tennis tournament played on indoor hard courts.

It was the 51st edition of the tournament, and part of the ATP Tour 250 series of the 2019 ATP Tour.

It took place at the Kungliga tennishallen in Stockholm, Sweden from 14 October until 20 October 2019.

Fourth-seeded Denis Shapovalov won the singles title.

[4] The following players received wildcards into the singles main draw: The following player received entry using a protected ranking into the singles main draw: The following players received entry from the qualifying draw: The following players received entry as lucky losers: The following pairs received wildcards into the doubles main draw: