| Official Name: | Adlešiči |
| 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: | White Carniola |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Southeast Slovenia |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Črnomelj |
| Area Total Km2: | 1.58 |
| Population As Of: | 2020 |
| Population Total: | 108 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.5224°N 15.311°W |
| Elevation M: | 212.6 |
| Postal Code: | 8341 |
| Blank Name: | Climate |
| Blank Info: | Cfb |
| Footnotes: | [1] |
Adlešiči (pronounced as /sl/; de|Adleschitz[2]) is a settlement on the left bank of the Kolpa River in the Municipality of Črnomelj in the White Carniola area of southeastern Slovenia. The area is part of the traditional region of Lower Carniola and is now included in the Southeast Slovenia Statistical Region.[3] It also encompasses a hamlet to the east near the bank of the Kolpa River called Nabrežci (literally, 'on the bank'), also known as Nabreško Selo (sl|Nabreško selo, literally 'settlement on the bank').[4]
Adlešiči was attested in historical sources as sancti Nicolai in 1334.[5]
The local parish church is dedicated to Saint Nicholas (sl|sveti Miklavž) and belongs to the Roman Catholic Diocese of Novo Mesto. The church was first mentioned in written documents dating to 1334, but it owes its current Baroque look to a major remodelling in the second half of the 18th century. The main altar dates to 1782.[6]