Saint Leo of Montefeltro otherwise Leone of Montefeltro (Italian: San Leo di Montefeltro, San Leone di Montefeltro) (c. 275–366) was the first bishop of Montefeltro, from 301. He is traditionally held to have been in origin a stonecutter from Dalmatia. He is venerated as a saint by the Roman Catholic church. His feast day is 1 August.