Mount Ossa (), alternatively Kissavos (ÃÂïÃÂÃÂñòÿÃÂ), is a mountain in the Larissa regional unit, in Thessaly, Greece. It is high and is located between Pelion to the south and Olympus to the north, separated from the latter by the Vale of Tempe.
The name Kissavos is Serbian kià ¡a meaning "wet weather, rain" and began being used in the 11th century.
Previously the Ancient Greek name Ossa was used, which was revived again in the 20th century.
In Greek mythology, the Aloadaes are said to have attempted to pile Mount Pelion on top of Mount Ossa in their attempt to scale Olympus.