The Ica stones are a collection of andesite stones with engraved motifs created as a work of art in the 1960s by Peruvian farmer Basilo Uschuya and others in the Ica Province. The artifacts, many of which notably depict non-avian dinosaurs and modern technology in a style imitating Mesoamerican art, were originally sold as having genuine Pre-Columbian origin, before Uschuya and other farmers admitted to having created them for profit, leading some to describe the stones as hoaxes.

Stones with engraved artwork were first reported in Peru in the middle sixteenth century during the Spanish conquest. Subsequent archaeological finds have been next to non-existent, though huaqueros (grave robbers) at some point prior to the 1960s began selling stones similar to the Ica stones. The modern set of stones were first popularized in the 1960s and 1970s. The most widely known collection of stones, numbering around 20,000 individual objects, belonged to the physician Javier Cabrera Darquea. Cabrera purchased the majority of his stones from Uschuya, before the latter admitted the forgery, and believed them to represent evidence of an ancient interstellar civilization that once existed in Peru for hundreds of millions of years.

Even though the forgery was admitted and the artworks depict species of dinosaurs not known to have lived in South America with outdated notions of their anatomy, some groups such as Young Earth creationists and ancient astronaut proponents have cited the stones as evidence for their claims. It is possible that some of the Ica stones without fantastical depictions are genuine pre-Columbian artifacts, a possibility that is mainly maintained for stones not part of Cabrera's collection and with more conventional pre-Columbian motifs.