| Duplín | |
| Settlement Type: | Municipality |
| Subdivision Type: | Country |
| Subdivision Type2: | Region |
| Subdivision Name2: | Prešov |
| Subdivision Type3: | District |
| Subdivision Name3: | Stropkov |
| Pushpin Map: | Slovakia Prešov Region#Slovakia |
| Pushpin Relief: | 1 |
| Pushpin Map Caption: | Location of Duplín in the Prešov Region##Location of Duplín in Slovakia |
| Coordinates: | 49.2333°N 59°W |
| Established Title: | First mentioned |
| Established Date: | 1379 |
| Area Total Km2: | 9.033 |
| Elevation M: | 197 |
| Population Total: | 452 |
| Population Density Km2: | auto |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 091 01 (pošta Stropkov) |
| Area Code: | +421-54 |
| Blank Name: | Car plate |
| Blank Info: | SK |
Duplín (Hungarian: Bányavölgy; Дуплін) is a village and municipality in Stropkov District in the 'Prešov Region of north-eastern Slovakia.
In historical records the village was first mentioned in 1379.
The municipality lies at an altitude of 197 metres and covers an area of 9.033 km². It has a population of about 452 people.