Brosna (Irish: An Bhrosnach)[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.

[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.