Belisama is a Celtic goddess. She was identified by Roman commentators with Minerva by interpretatio romana.

Interpretatio graeca, or "interpretation by means of Greek [models]", refers to the tendency of the ancient Greeks to identify foreign deities with their own gods. It is a discourse used to interpret or attempt to understand the mythology and religion of other cultures; a comparative methodology using ancient Greek religious concepts and practices, deities, and myths, equivalencies, and shared characteristics.