Spectrum can refer to:

• The word spectrum - a common noun with a variety of related meanings.

• Spectrum - the Earth defence force in the 1960s science fiction television series Captain Scarlet.

• Spectrum (band) - an Australian progressive rock group of the early 1970s.

• ZX Spectrum - a 1980s personal computer.

• IEEE Spectrum - a magazine [1] (http://www.spectrum.ieee.org/) edited by the Institute of Electrical and Electronics Engineers.

• The Spectrum, now known as the Wachovia Spectrum - a sports arena in Philadelphia.