Kukulkan ("Plumed Serpent", "Feathered Serpent") is the name of a Maya snake deity that also serves to designate historical persons. The depiction of the feathered serpent deity is present in other cultures of Mesoamerica. Kukulkan is closely related to the god Q'uq'umatz of the K'iche' Maya and to Quetzalcoatl of the Aztecs. Little is known of the mythology of this pre-Columbian deity.
Although heavily Mexicanised, Kukulkan has his origins among the Maya of the Classic Period, when he was known as Waxaklahun Ubah Kan, the War Serpent, and he has been identified as the Postclassic version of the Vision Serpent of Classic Maya art.
The cult of Kukulkan/Quetzalcoatl was the first Mesoamerican religion to transcend the old Classic Period linguistic and ethnic divisions. This cult facilitated communication and peaceful trade among peoples of many different social and ethnic backgrounds. Although the cult was originally centred on the ancient city of Chichén Itzá in the modern Mexican state of Yucatán, it spread as far as the Guatemalan highlands.