The Men's Open de France - Nantes 2019 is the men's edition of the 2019 Open International de Squash de Nantes, which is a tournament of the PSA World Tour event World Tour Silver (Prize money: $73,500).

The event took place at the Château des ducs de Bretagne in Nantes in France from 9 to 14 September.

Paul Coll won his first Open International de Nantes trophy, beating Joel Makin in the final.

[1] For 2019, the prize purse was $73,500.

The prize money and points breakdown is as follows:[2]