Boyle, County Roscommon
Drumahaire barony is bordered to the north by Rosclogher; to the southeast by Leitrim and Carrigallen (all the preceding baronies are also in County Leitrim); to the east by Tullyhaw, County Cavan; to the west by Carbury and Tirerril, County Sligo; and to the south by Boyle, County Roscommon.