Nenagh
| Nenagh An tAonach / Aonach Urmhumhan | |
|---|---|
| Town | |
| Nenagh town centre | |
| Coordinates: 52°51′48″N 8°11′58″W / 52.8632°N 8.1995°W | |
| Country | Ireland | 
| Province | Munster | 
| County | Tipperary | 
| Municipal District | Nenagh | 
| Elevation | 72 m (236 ft) | 
| Population  (2022) | |
|  • Total | 9,895 | 
| Eircode | E45 | 
| Telephone area code | 067 | 
| Irish Grid Reference | R865787 | 
| Website | www | 
Nenagh (/ˈniːnə/ NEE-nə; Irish: Aonach Urmhumhan, meaning 'the Fair of Ormond', or simply An tAonach 'the Fair') is the county town of County Tipperary in Ireland. Nenagh used to be a market town, and the site of the East Munster Ormond Fair.
Nenagh was the county town of the former county of North Tipperary. It became the second-largest urban centre in the amalgamated county, with a population of 9,895 in 2022. The town is in a civil parish of the same name.