3490 may refer to:
A.D. 3490, a year in the 4th millennium CE 3490 BC, a year in the 4th millennium BCE 3490, a number in the 3000 (number) range
Other uses 3490 storage tape format, from the IBM 3480 Family 3490 Šolc, an asteroid in the Asteroid Belt, the 3490th asteroid registered Texas Farm to Market Road 3490, a state highway
See also