Chuchunya is a hominid cryptid rumoured to exist in Siberia, Russia. It has been described as six to seven feet tall and covered with dark hair. Some cryptozoologists including Bernard Heuvelmans have speculated that Chuchunya may be a relict population of Neanderthal. Mark Hall, another cryptozoologist, has suggested surviving members of Homo gardarensis. No conclusive evidence for the existence of the creature have yet been presented.
In 1928, the Soviets sent out an expedition team to gather information about the Chuchunya near the Indigirka and Yana rivers. There they found that Chuchunya were remarkably similar to the Mulen (Almas).
According to the native accounts from the nomadic Yakut and Tungus tribes, they are a well built, Neanderthal-like man wearing pelts as clothes  and a white patch of fur on its forearms. It is said to occasionally consume human flesh, unlike their close cryptid cousin the Almastis. Some witnesses reported seeing a tail on the creature corpse. It is described as being roughly six to seven feet tall. 
According to legend, near a small fishing village called Chekurovka, there was a Chechunya that lived in the mountains of Verchojansk and caught reindeer for their pelts and would scream upon meeting a person. The Chuchunya was killed by hunters in 1957 and body was brought to the Lena River to Yakutsk and disappeared.
No physical evidence has been brought forth despite the many stories of there being a body. The only evidence there is are the numerous sightings by natives and a single photograph which cannot be documented or dated.
- Newton, Michael (2005). "Chuchunaa". Encyclopedia of Cryptozoology: A Global Guide. McFarland & Company, Inc. p. 102. ISBN 0-7864-2036-7.
- "Chuchunaa". Unknown Explorers. Retrieved 2016-09-19.
- Loren Coleman; Patrick Huyghe (1999). Field Guide To Bigfoot, Yeti, & Other Mystery Primates Worldwide. Harper Perennial. pp. 116–17. ISBN 978-0380802630.