Orrery and Kilmore (Irish: Orbhraí agus An Choill Mhór) is a historical barony in north County Cork, Ireland.

[7][8] One of these must refer to the Orbraige of Druim Imnocht, a subbranch of the tribe that was based in County Kerry.

After the Plantation of Munster, the ancient kingdom's name was preserved with the granting of the title of Earl of Orrery to Roger Boyle, Baron of Broghill in 1660.

[10] "Kilmore" (Coill Mór) means "Great Wood," referring to the forests found northwest of Newtownshandrum.

[11] Orrery and Kilmore is in the north of the county, sandwiched between Fermoy barony and Duhallow, to the south of the River Maigue.