| Bašanija | |
| Other Name: | Bassania |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Pushpin Label Position: | right |
| Coordinates: | 45.485°N 13.5°W |
| Subdivision Type: | Country |
| Subdivision Type1: | County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Umag |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 1.3 |
| Population As Of: | 2021 |
| Population Total: | 193 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 52475 Savudrija |
| Area Code: | 052 |
Bašanija (Italian: Bassania) is a naselje (settlement) in the municipality of Umag, Istria County, Croatia. It is the westernmost point of Croatia.
According to the 2021 census, its population was 193. According to the 2011 census, it had 256 inhabitants.