Kjer may refer to:
In people: Bodil Kjer (1917–2003), Danish actress Eva Kjer Hansen (born 1964), Danish politician Karl Kjer (born 1959), American entomologist Paul Kjer, Danish ophthalmologist who first described the condition now known as Kjer's optic neuropathy
In other uses: Kjer Glacier, glacier in Greenland Kjer's optic neuropathy, dominant optic atrophy