The 2019 Moselle Open was a men's tennis tournament played on indoor hard courts.

It was the 17th edition of the Moselle Open, and part of the ATP Tour 250 Series of the 2019 ATP Tour.

It took place at the Arènes de Metz from 16 September to 22 September 2019.

Unseeded Jo-Wilfried Tsonga won the singles title.

[1] The following players received wildcards into the singles main draw: The following players received entry using a protected ranking into the singles main draw: The following players received entry from the qualifying draw: The following pairs received wildcards into the doubles main draw: