Messia may refer to:

• Messia gens, family at ancient Rome
• Pedro Messía de la Cerda, 2nd Marquis of Vega de Armijo (1700–1783); a Spanish naval officer
• a harvesting goddess associated with Tutelina
• Agutazza Messia, an illiterate Sicilian woman (a quilt maker and domestic) from whom Giuseppe Pitre takes most of his tales, also in Italo Calvino's folktales collection