Nová Dubnica (German: Neudubnitz; Hungarian: Újtölgyes; Czech: Nová Dubnice) is a town in Trenčín Region, Slovakia.

It is located in the Ilava Basin at the foothills of the Strážovské vrchy mountains.

The town was established in the 1950s originally for the purpose of housing workers of the local heavy machinery factory Závody ťažkého strojárstva.

Construction started in 1951, and became separate from Dubnica nad Váhom and from parts of cadastral areas of Trenčianske Teplice and Veľký Kolačin municipalities in 1957 and was named Nová Dubnica and received town rights in 1960.

95.6% of inhabitants were Slovaks, 1.8% Czechs and 0.2% German and Hungarians.