G band

G band may refer to:

• G band (IEEE), a millimetre wave band from 110 to 300 GHz
• G band (NATO), a radio frequency band from 4 to 6 GHz
• G band, representing a green hued wavelength of in the photometric systems adopted by astronomers
• G banding, in cytogenetics
• The G Band, alternative name of The Glitter Band