| Brosna | |
| Native Name: | Irish: An Bhrosnach |
| Native Name Lang: | ga |
| Settlement Type: | Village |
| Pushpin Map: | Ireland |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Ireland |
| Subdivision Type: | Country |
| Subdivision Name: | Ireland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Leinster |
| Subdivision Type3: | County |
| Subdivision Name3: | Offaly |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Timezone1: | WET |
| Utc Offset1: | +0 |
| Timezone1 Dst: | IST (WEST) |
| Utc Offset1 Dst: | -1 |
| Coordinates: | 52.9913°N -7.8881°W |
| Blank Name: | Irish Grid Reference |
Brosna [1] is a small village and townland in County Offaly, Ireland. 7 km north-west of Roscrea, it lies in the valley of the Little Brosna River near the N62 road. The area takes its name from the Little Brosna River, which flows along the north-eastern edge of the townland.[1] As of the 2011 census, Brosna townland had a population of 31 people.[2]
Brosna House, an early 19th-century two-storey house located at the roadside, is listed as being of architectural interest.[3] A late 19th-century cast iron water pump also stands in the village.[4]
Gloster House hotel and wedding venue is also located in the area.[5] [6]