A Universal Turing machine, often just called a universal machine, is an abstract computational device that can simulate other computational devices.
Universal machine may also refer to:
Programmable Universal Machine for Assembly Machines made by Universal Gym Equipment The Universal Machine, a mini-series of the Bureau for Paranormal Research and Defense comic books The Universal Machine: Confessions of a Technological Optimist, a book by Pamela McCorduck Universal measuring machine
See also Santucci's Armillary Sphere, said to represent the "universal machine" of the world