Old Dalby is a village and former civil parish, now in the parish of Broughton and Old Dalby, in the Melton district, in the county of Leicestershire, England. It is located to the north-west of Melton Mowbray. It was originally known as "Wold Dalby" or "Dalby on the Wolds". In 1931 the parish had a population of 315. On 1 April 1936 the parish was abolished to form "Broughton and Old Dalby".