| St. Georgen am Längsee | |
| Pushpin Map: | Austria Carinthia#Austria |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location within Austria |
| Coordinates: | 46.7833°N 40°W |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Carinthia |
| Subdivision Type2: | District |
| Subdivision Name2: | St. Veit an der Glan |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Konrad Seunig (SPÖ) |
| Elevation M: | 537 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 9330, 9313 |
| Area Code Type: | Area code |
| Area Code: | +43 4213 |
| Website: | www.stgeorgen-laengsee.at |
St. Georgen am Längsee (Slovenian: Šentjurij ob Dolgem jezeru) is a municipality in the district of St. Veit an der Glan in Carinthia, Austria.
St. Georgen is located at the Längsee north of the Zollfeld Valley. In the east, the Gurk River flows southwards into the Klagenfurt basin. The municipal area comprises the cadastral communities of Goggerwenig, Gösseling, Launsdorf, Osterwitz, and Taggenbrunn as well as famous Hochosterwitz Castle in the south.
The settlement arose from the former St. Georgen monastery of Benedictine nuns established about 1002/08 by the local Countess Wichburg, a granddaughter of the Bavarian duke Eberhard. Rebuilt in a Baroque style, it was dissolved by order of Emperor Joseph II in 1783. Today the premises serve as a conference centre.
Seats in the municipal assembly (Gemeinderat) elections:
See also: List of twin towns and sister cities in Austria. St. Georgen is twinned with:
Zoppola, Italy