| Unín | |
| Settlement Type: | Village |
| Subdivision Type: | Country |
| Subdivision Name: | Slovakia |
| Subdivision Type2: | Region |
| Subdivision Name2: | Trnava |
| Subdivision Type3: | District |
| Subdivision Name3: | Skalica |
| Pushpin Map: | Slovakia Trnava Region#Slovakia |
| Pushpin Relief: | 1 |
| Pushpin Map Caption: | Location of Unín in the Trnava Region |
| Coordinates: | 48.7333°N 30°W |
| Established Title: | First mentioned |
| Established Date: | 1392 |
| Area Total Km2: | 22.71[1] |
| Area Total Sq Mi: | 8.77 |
| Elevation M: | 276[2] |
| Elevation Ft: | 906 |
| Population Total: | 1203[3] |
| Population Density Km2: | 53.03[4] |
| Population Density Sq Mi: | 20.47 |
| Postal Code Type: | Postal code |
| Postal Code: | 908 46 |
| Area Code: | +421 34 |
| Blank Name: | Car plate |
| Blank Info: | SI |
| Website: | www.unin.sk |
Unín (Hungarian: Nagyúny) is a village and municipality in Skalica District in the Trnava Region of western Slovakia.
In historical records the village was first mentioned in 1392.
The municipality lies at an altitude of 269 metres and covers an area of 22.727 km2. It has a population of about 1,180 people.