Necker may refer to:
Necker (surname) Necker (ship), several ships Necker (Thur), a tributary of the River Thur in Switzerland Neckerchief, cloth worn round the neck Necker cube, optical illusion Necker Island (Hawaii) Necker Island (British Virgin Islands) Necker–Enfants Malades Hospital
See also Neker (disambiguation) Neckar (disambiguation) Neckertal, Switzerland, from the valley of the Necker