| Knocknahur | |
| Native Name: | Cnoc na hIora |
| Native Name Lang: | ga |
| Other Name: | Ransboro |
| Settlement Type: | Village |
| Pushpin Map: | Ireland |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Ireland |
| Subdivision Type: | Country |
| Subdivision Name: | Ireland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Connacht |
| Subdivision Type3: | County |
| Subdivision Name3: | County Sligo |
| Unit Pref: | Metric |
| Population As Of: | 2002 |
| Population Density Km2: | auto |
| Utc Offset1: | +0 |
| Timezone1 Dst: | IST (WEST) |
| Utc Offset1 Dst: | -1 |
| Coordinates: | 54.245°N -8.5386°W |
| Elevation M: | 39 |
| Blank Name: | Irish Grid Reference |
Knocknahur,[1] also known as Ransboro, is a village in County Sligo, Ireland.
Evidence of ancient settlement in the area includes examples of ringforts, souterrains and enclosures in the neighbouring townlands of Knocknahur North and Knocknahur South.[2] The megalithic complex at Carrowmore lies approximately 1 km east of the village.
The area is home to Ransboro National School,[3] the church of Our Lady Star of the Sea (in the Roman Catholic Diocese of Elphin) [4] and the grounds of Coolera/Strandhill GAA club at Ransboro Park.[5]