罗斯康芒（英语：Roscommon；爱尔兰语：Ros Comáin），是爱尔兰罗斯康芒郡的一个城镇，位于该郡中部。总人口5,017(2006年）。该城镇为罗斯康芒郡郡治。

Roscommon (Irish:Ros Comáin, meaning "Saint Coman's wood") is the county town of County Roscommon in Ireland. It is near the meeting of the N60, N61 and N63 roads, putting it roughly in the centre of Ireland.

The name Roscommon is derived from Coman mac Faelchon who built a monastery there in the 5th century. The woods near the monastery became known as Ros Comáin (St. Coman's Wood). This was later anglicised to Roscommon.