126 may refer to:
126 (number), a natural number
AD 126, a year in the 2nd century AD
126 BC, a year in the 2nd century BC
126 film, a cartridge-based film format used in still photography
126 (New Jersey bus), a New Jersey Transit bus route
126 Artist-run Gallery, an artist-run space located in Galway City, Ireland
Interstate 126 in South Carolina
126 Velleda, a main-belt asteroid
Fiat 126, a city car