| Official Name: | Dednja Vas |
| 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: | Lower Sava |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Brežice |
| Area Total Km2: | 2.7 |
| Population As Of: | 2020 |
| Population Total: | 176 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.9785°N 15.6405°W |
| Elevation M: | 245.4 |
| Footnotes: | [1] |
Dednja Vas (in Slovenian pronounced as /ˈdeːdnja ˈʋaːs/; Slovenian: Dednja vas, German: Dittmannsdorf[2]) is a settlement in the Municipality of Brežice in eastern Slovenia. The area is part of the traditional region of Styria. It is now included with the rest of the municipality in the Lower Sava Statistical Region.[3] It includes the hamlets of Babniki (a.k.a. Zakozolec), Cerenja Gorca, Dole, Gaberska Gorca, Sveti Križ (German: Heiligenkreuz), Rapovce (German: Rapowitz), Sela, Veliko Bukovje, Veseli Vrh (German: Freudenberg), and Vošni Dol (German: Aschenthal).[2]
The local church, built on a hill above the settlement, is dedicated to the Holy Cross and belongs to the Parish of Pišece. It is a Gothic building with ribbed vaults and trefoil mouldings on its windows. It was remodelled in the 18th century, but still retains these original features.[4]