Dungannon Lower (named after Dungannon town) is a historic barony in County Tyrone, Northern Ireland.

[2] It was created in 1851 with the splitting of the barony of Dungannon.

[3] It is bordered by four other baronies in Northern Ireland: Dungannon Middle to the north; Tiranny to the south-east; Clogher to the west; and Omagh East to the north-west.

[2] It is also bordered in the south-west by the barony of Trough in the Republic of Ireland.

Below is a list of civil parishes in Dungannon Lower:[4]