| Official Name: | Tupčina |
| Pushpin Map: | Croatia |
| Area Footnotes: | [1] |
| Area Total Km2: | 3.8 |
| Population As Of: | 2021 |
| Population Total: | 32 |
| Population Density Km2: | auto |
| Timezone1: | Central European Time |
| Postal Code: | 10455 |
| Area Code: | (+385) 10 |
Tupčina, together with Donji Oštrc and Gornji Oštrc form the settlement (naselje) of Oštrc, and belong to the municipality of Žumberak.
Tupčina also includes the hamlets: Duralije i Jankovići. [2]
Tupčina had 49 inhabitants according to the census in 2011. [3]
Tupčina belongs to the parish of Oštrc, which was founded in 1827. [4]