| Official Name: | Kupusina |
| Native Name: | |
| Settlement Type: | Village (Selo) |
| Pushpin Map: | Serbia Vojvodina#Serbia#Europe |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: |  Serbia |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Bačka (Podunavlje) |
| Subdivision Type3: | District |
| Subdivision Name3: | West Bačka |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Apatin |
| Unit Pref: | Metric |
| Area Footnotes: | [1] |
| Area Total Km2: | 62.49 |
| Population As Of: | 2011 |
| Population Total: | 1921 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 45.7361°N 19.0972°W |
| Elevation M: | 125 |
Kupusina (Serbian: Купусина|Kupusina; Hungarian: Bácskertes) is a village located in the municipality of Apatin West Bačka District, Vojvodina, Serbia. As of 2011 census, it has a population of 1,921 inhabitant and Hungarian ethnic majority.
In June 2006 session of the Municipality of Apatin, the Hungarian language gained the status of the official language of Kupusina. Until then, Serbian language was the sole official language in this village,[2] although Hungarians have comprised majority in the village since the country of Serbia and Montenegro was established.
The ethnic groups in the village as of 2002 census: