Dumbleyung
| Gazetted | 1907 |
| Latitude | 33º 15' S |
| Longitude | 117º 44' E |
| Elevation | 277 metres |
| Population (2002) | 701 |
| Local Government Area | Shire of Dumbleyung |
| Postcode | 6350 |
The Shire of Dumbleyung is a Local Government Area of Western Australia. It is situated in the Great Southern region of Western Australia, and covers an area of 2551 km2. In 2002, it had a population of 701.
Dumbleyung is also a small farming town in the Shire of Dumbleyung. Dumbleyung is located at 33°15' S, 117° 44' E. The only other town in the Shire is Kukerin. The nearby Dumbleyung Lake is a well-known attraction.