| Official Name: | Lastnič |
| Pushpin Map: | Slovenia |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Slovenia |
| Subdivision Type: | Country |
| Subdivision Name: | Slovenia |
| Subdivision Type1: | Traditional region |
| Subdivision Name1: | Styria |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Savinja |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Podčetrtek |
| Area Total Km2: | 5.11 |
| Population As Of: | 2002 |
| Population Total: | 161 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 46.0818°N 15.616°W |
| Elevation M: | 251.9 |
| Footnotes: | [1] |
Lastnič (in Slovenian pronounced as /lasˈtniːtʃ/) is a settlement in the hills above the right bank of the Sotla River in the Municipality of Podčetrtek in eastern Slovenia. The area around Podčetrtek is part of the traditional region of Styria. It is now included in the Savinja Statistical Region.[2]