Contae Ros Comáin
|Dáil Éireann||Roscommon–South Leitrim|
|• Type||County Council|
|• Total||2,547 km2 (983 sq mi)|
County Roscommon (Irish: Contae Ros Comáin) is a county of Ireland. It is in the province of Connacht. It is named after the town of Roscommon. The population of County Roscommon was 65,065 according to the 2011 Irish Census.