Baldersby is a village and civil parish in North Yorkshire, England, about 6 miles (10 km) west of Thirsk and 5 miles (8 km) north-east of Ripon on the A61. The parish includes the village of Baldersby St James, 1 mile (2 km) south-east of the village of Baldersby, but not Baldersby Park, which is in the parish of Rainton with Newby. According to the 2001 census the parish had a population of 253, increasing to 285 at the 2011 census.