| Košecké Podhradie | |
| Settlement Type: | Municipality |
| Subdivision Type: | Country |
| Subdivision Name: | Slovakia |
| Subdivision Type2: | Region |
| Subdivision Name2: | Trenčín |
| Subdivision Type3: | District |
| Subdivision Name3: | Ilava |
| Pushpin Map: | Slovakia Trenčín Region#Slovakia |
| Pushpin Relief: | 1 |
| Pushpin Map Caption: | Location of Košecké Podhradie in the Trenčín Region |
| Pushpin Label Position: | bottom |
| Coordinates: | 48.9733°N 18.3069°W |
| Established Title: | First mentioned |
| Established Date: | 1312 |
| Area Total Km2: | 36.91[1] |
| Area Total Sq Mi: | 14.25 |
| Elevation M: | 379[2] |
| Elevation Ft: | 1,243 |
| Population Total: | 1054[3] |
| Population Density Km2: | 28.46[4] |
| Population Density Sq Mi: | 10.99 |
| Postal Code Type: | Postal code |
| Postal Code: | 018 31 |
| Area Code: | +421 42 |
| Blank Name: | Car plate |
| Blank Info: | IL |
| Website: | www.koseckepodhradie.ocu.sk |
Košecké Podhradie (Hungarian: Kasaváralja) is a village and municipality in Ilava District in the Trenčín Region of north-western Slovakia.
In historical records the village was first mentioned in 1312.
The municipality lies at an altitude of 330 metres and covers an area of 36.915 km2. It has a population of about 1071 people.