Cahir
| Cahir An Chathair/Cathair Dún Iascaigh | |
|---|---|
| Town | |
| Castle Street | |
| Coordinates: 52°22′30″N 7°55′30″W / 52.375°N 7.925°W | |
| Country | Ireland | 
| Province | Munster | 
| County | Tipperary | 
| Dáil Éireann | Tipperary | 
| Elevation | 50 m (160 ft) | 
| Population  (2016) | |
|  • Total | 3,593 | 
| Dialing code | 052 744, +000 353 (0)52 744 | 
| Irish Grid Reference | S051252 | 
| Year | Pop. | ±% | 
|---|---|---|
| 1821 | 3,288 | — | 
| 1831 | 3,408 | +3.6% | 
| 1841 | 3,668 | +7.6% | 
| 1851 | 3,694 | +0.7% | 
| 1861 | 2,926 | −20.8% | 
| 1871 | 2,694 | −7.9% | 
| 1881 | 2,469 | −8.4% | 
| 1891 | 2,046 | −17.1% | 
| 1901 | 2,058 | +0.6% | 
| 1911 | 1,930 | −6.2% | 
| 1926 | 1,709 | −11.5% | 
| 1936 | 1,638 | −4.2% | 
| 1946 | 1,652 | +0.9% | 
| 1951 | 1,589 | −3.8% | 
| 1956 | 1,731 | +8.9% | 
| 1961 | 1,662 | −4.0% | 
| 1966 | 1,740 | +4.7% | 
| 1971 | 1,747 | +0.4% | 
| 1981 | 2,120 | +21.4% | 
| 1986 | 2,118 | −0.1% | 
| 1991 | 2,055 | −3.0% | 
| 1996 | 2,236 | +8.8% | 
| 2002 | 2,794 | +25.0% | 
| 2006 | 3,381 | +21.0% | 
| 2011 | 3,578 | +5.8% | 
| 2016 | 3,593 | +0.4% | 
Cahir (/ˈkɛər/; Irish: an Chathair / Cathair Dún Iascaigh) is a town in County Tipperary in Ireland. It is also a civil parish in the barony of Iffa and Offa West.