Orior Upper (from Irish: Airthir, the name of an ancient Gaelic territory)[2][3] is a barony in County Armagh, Northern Ireland.

[4] It lies in the south-east of the county and borders the Republic of Ireland with its southern boundary.

It is bordered by five other baronies in Northern Ireland: Fews Upper and an enclave of Fews Lower to the west; Orior Lower to the north; Iveagh Upper, Upper Half to its west, which is divided in two by the Lordship of Newry.

Below is a list of settlements in Orior Upper:[1] Below is a list of civil parishes in Orior Upper:[5][6]

This article related to the geography of County Armagh, Northern Ireland is a stub.