Castlereagh Upper
Castlereagh Upper is a historic barony in County Down, Northern Ireland. It was created by 1841 with the division of Castlereagh into two. It is bordered by eight other baronies: Castlereagh Lower and Dufferin to the east; Lecale Lower and Kinelarty to the south; Iveagh Lower, Lower Half, Iveagh Lower, Upper Half, and Massereene Upper to the west; and Belfast Upper to the north.