Mayanism is a non-codified eclectic collection of New Age beliefs, influenced in part by Pre-Columbian Maya mythology and some folk beliefs of the modern Maya peoples. Adherents of this belief system are not to be confused with Mayanists, scholars who research the historical Maya civilization.

Contemporary Mayanism places less emphasis on contacts between the ancient Maya and lost lands than in the work of early writers such as Godfrey Higgins, Charles Étienne Brasseur de Bourbourg and Augustus Le Plongeon, alluding instead to possible contacts with extraterrestrial life. However, it continues to include references to Atlantis. Notions about extraterrestrial influence on the Maya can be traced to the book Chariots of the Gods? by Erich von Däniken, whose ancient astronaut theories were in turn influenced by the work of Peter Kolosimo and especially the team of Jacques Bergier and Louis Pauwels, authors of Le Matin des magiciens. These latter writers were inspired by the fantasy literature of H. P. Lovecraft and publications by Charles Fort. However, there remain elements of fascination with lost continents and lost civilizations, especially as popularized by 19th century science fiction and speculative fiction by authors such as Jules Verne, Edward Bulwer-Lytton, and H. Rider Haggard.