| Official Name: | Drtno |
| 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: | Upper Carniola |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Central Slovenia |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Lukovica |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 46.1972°N 14.8744°W |
| Elevation Footnotes: | [1] |
| Elevation M: | 630 |
Drtno (in Slovenian pronounced as /ˈdəɾtnɔ/, in older sources Dertno[2]) is a former village in central Slovenia in the Municipality of Lukovica. It is now part of the village of Hribi.[3] It is part of the traditional region of Upper Carniola and is now included in the Central Slovenia Statistical Region.
Drtno is a small settlement along the upper course of the Bolska River.[3] It lies northwest of the main hamlet in Hribi.
Drtno was attested in written sources as Odertnim in 1571,[4] [5] and in older modern sources it was spelled Dertno.[2] The name is probably derived from Slavic (poľe) 'cleared field', referring to land that was cleared for farming.[6] Related toponyms include Drtija and Razdrto,[6] as well as various microtoponyms (Drt, Drti, Drtica, Drtiči, Drtičje, Drtine, Drtniki).[7]
Drtno had a population of nine (in two houses) in 1900,[8] six (in one house) in 1931,[1] and nine (in two houses) in 1953.[9] It has no residents today. Drtno was annexed by Hribi in 1953, ending its existence as a separate settlement.[10] [11] [12]