Ferrensby is a village and civil parish in the Harrogate district of North Yorkshire, England. The population of the civil parish at the 2011 census was 187. It is about 3 miles north-east of Knaresborough and near the A1 motorway. Nearby attractions include a balloon centre and a maze. The origin of the place-name is from Old Norse and probably means "farmstead or village of the man from the Faroe Islands", and appears as Feresbi in the Domesday Book of 1086.