| South Salt | |
| Native Name: | An Léim Theas (Irish) |
| Settlement Type: | Barony |
| Subdivision Type: | Sovereign state |
| Subdivision Name: | Ireland |
| Subdivision Type1: | County |
| Subdivision Name1: | Kildare |
| Area Total Km2: | 67.4 |
| Area Total Sq Mi: | 26.02 |
South Salt is a barony in County Kildare, Ireland.
South Salt derives its name from the Latin name of Leixlip: Saltus salmonis (literally "salmon leap"; the English name is derived from Old Norse Lax-hlaup). This makes Salt one of very few Irish placenames derived directly from Latin.
South Salt barony is located in northeast County Kildare, south of the Liffey, bordering on County Dublin.
There was originally a single Salt barony, divided into south and north baronies before 1807.[1]
Below is a list of settlements in South Salt: