Zubák (Hungarian: Trencsénfogas) is a village and municipality in Púchov District in the Trenčín Region of north-western Slovakia.
In historical records the village was first mentioned in 1471.
The municipality lies at an altitude of 430 metres and covers an area of 25.666 km². It has a population of about 923 people.
Coordinates: 49°09′N 18°13′E / 49.150°N 18.217°E / 49.150; 18.217