| Official Name: | Podštirovnik |
| Native Name: | Подштировник |
| Settlement Type: | Village |
| Pushpin Map: | Bosnia and Herzegovina |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: | Bosnia and Herzegovina |
| Subdivision Type1: | Entity |
| Subdivision Name1: | Republika Srpska |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Trebinje |
| Unit Pref: | Imperial |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 42.5803°N 18.4597°W |
Podštirovnik (Serbian: Подштировник) is a village in the municipality of Trebinje, Republika Srpska, Bosnia and Herzegovina.[1] It is the southernmost point of the country.