Knocknahur (Irish: Cnoc na hIora, meaning 'hill of the surety'),[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.

This article related to the geography of County Sligo, Ireland is a stub.