| Louth | |
| Settlement Type: | Barony |
| Subdivision Type: | Sovereign state |
| Subdivision Name: | Ireland |
| Subdivision Type1: | County |
| Subdivision Name1: | Louth |
| Area Total Km2: | 104.02 |
| Area Total Sq Mi: | 40.16 |
Louth [1] is a barony in County Louth, Ireland.
Louth barony is named after the village of Louth (also Irish: Lú, for the god Lugh).
Louth barony is found in central County Louth, mostly between the River Glyde and River Fane. It is bordered to the north by Dundalk Upper; to the south by Ardee; and to the west by Farney, County Monaghan.
Louth barony was formed from Ludha, or Lugha, the country of the Ó Cearbhaill Oirialla (O'Carroll of Oriel).
Below is a list of settlements in Louth barony: