Alcor may refer to:

Alcor (star), also known as 80 Ursae Majoris, a star in Ursa Major very close to Mizar Alcor (rocket engine), also known as Zebra or 30-KS-8000, a US Air Force engine used 1960–1977 Alcor Life Extension Foundation, a foundation that advocates for, researches, and performs cryonics Alcor sailplane, a high altitude pressurized sailplane developed by aeronautical engineer Robert Lamson ALCOR, a programming language French name of the anime and manga hero Koji Kabuto

See also USS Alcor