5140 may refer to:

A.D. 5140, a year in the 6th millennium CE 5140 BCE, a year in the 6th millennium BC 5140, a number in the 5000 (number) range

Products Nokia 5140, a cellphone IBM 5140, the IBM PC Convertible, one of the first laptop computers SIG GL 5140, a variant of the SIG GL 5040, a grenade launcher

Other uses 5140 Kida, an asteroid in the Asteroid Belt, the 5140th asteroid registered

See also