Chaac

Earthenware effigy urn (an incense burner) of Chaac, 12th–14th century

Chaac (also spelled Chac or, in Classic Mayan, Chaahk [t͡ʃaːhk]) is the name of the Maya god of rain, thunder, and lightning. With his lightning axe, Chaac strikes the clouds, causing them to produce thunder and rain. Chaac corresponds to Tlaloc among the Aztecs.