Trenčín is a city located in western Slovakia within the central Váh River valley near the Czech border. Situated approximately 95 km (59 mi) from Bratislava, it serves as the seat of both the Trenčín District and the Trenčín Region.
The city has a population exceeding 55,000 residents, making it the eighth largest municipality in Slovakia. A notable landmark is Trenčín Castle, a medieval fortress situated on a rock overlooking the city.