| Official Name: | Gradin |
| Pushpin Map: | Slovenia |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Slovenia |
| Coordinates: | 45.456°N 13.8482°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Slovenia |
| Subdivision Type1: | Traditional region |
| Subdivision Name1: | Littoral |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Coastal–Karst |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Koper |
| Area Total Km2: | 1.44 |
| Elevation M: | 476.9 |
| Population As Of: | 2002 |
| Footnotes: | [1] |
Gradin (pronounced as /sl/) is a settlement in the City Municipality of Koper in the Littoral region of Slovenia.[2]
The former parish church in the settlement is dedicated to the Feast of the Holy Cross.[3]
In 1954, when the Free Territory of Trieste was dissolved and Zone B was assigned to Yugoslavia, Gradin (together with Abitanti, Belvedur, Brezovica pri Gradinu, Koromači–Boškini, Močunigi, Pregara, and Sirči) was originally assigned to the Socialist Republic of Croatia. In 1956 these villages were reassigned to the Socialist Republic of Slovenia.[4]