| Irschen | |
| Pushpin Map: | Austria |
| Pushpin Mapsize: | 270 |
| Pushpin Map Caption: | Location within Austria |
| Coordinates: | 46.75°N 14°W |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Carinthia |
| Subdivision Type2: | District |
| Subdivision Name2: | Spittal an der Drau |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Gottfried Mandler |
| Elevation M: | 809 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 9773 |
| Area Code Type: | Area code |
| Area Code: | 04710 |
| Website: | www.irschen.at |
Irschen is a municipality in the district of Spittal an der Drau in the Austrian state of Carinthia.
It consists of the Katastralgemeinden Irschen, Ritterdorf, and Simmerlach. It is situated on the northern slope of the Upper Drava Valley, near the B 100 Drautal Straße highway and the Drautalbahn railway line.
A settlement area since the Early Iron Age (Hallstatt Culture), Irschen may be identical to the Idunum polis in the former Celtic kingdom of Noricum, as mentioned in Ptolemy's Geographia. In Roman times a mansio laid on the road leading over the Gailbergsattel mountain pass to Italia. Ursus I, Patriarch of Aquileia probably built the first church about 810 in the place then called Ursen, which was mentioned as Castrum Ursen in a 1086 deed. In medieval times Irschen was a mining area, especially for gold.
It was recently revealed that the English actress Billie Piper has a home in this region.