| Sankt Jakob im Rosental | |
| Native Name: | Šentjakob v Rožu |
| Pushpin Map: | Austria |
| Pushpin Mapsize: | 270 |
| Pushpin Map Caption: | Location within Austria |
| Coordinates: | 46.5333°N 17°W |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Carinthia |
| Subdivision Type2: | District |
| Subdivision Name2: | Villach-Land |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Guntram Perdacher |
| Elevation M: | 480 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 9184 |
| Area Code Type: | Area code |
| Area Code: | 04253 |
| Website: | www.st-jakob-ros.at |
Sankt Jakob im Rosental (sl|Šentjakob v Rožu) is a town in the district of Villach-Land in the Austrian state of Carinthia.
The municipality borders on Slovenia in the south, and the northern boundary is formed by the Drau River. It lies in the western part of the Rosen valley.
According to the 2001 census 16.4% of the population are Carinthian Slovenes.
In the Carinthian Plebiscite of 1920, Sankt Jakob was one of the 17 Carinthian municipalities, where the majority of the population (54%) voted for the annexation to the Kingdom of Serbs, Croats and Slovenes (Yugoslavia).
However, since 59% of the voters in the entire voting zone A were in favour of remaining with Austria, the municipal area also remained with Carinthia.
Among the famous natives of the municipality were the Slovene philologists Matija Ahacel and Anton Janežič.