| Official Name: | Osojnik |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Coordinates: | 45.3932°N 15.2055°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Croatia |
| Subdivision Type2: | County |
| Subdivision Name2: | Primorje-Gorski Kotar County |
| Subdivision Type3: | City |
| Subdivision Name3: | Vrbovsko |
| Area Footnotes: | [1] |
| Area Total Km2: | 28.8 |
| Population As Of: | 2021 |
| Population Total: | 86 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 51326 |
| Area Code: | +385 051 |
Osojnik is a village in Croatia, under the Vrbovsko township, in Primorje-Gorski Kotar County.