Dumbbell (disambiguation)

A dumbbell is a piece of equipment used in weight training.

Dumbbell may also refer to:
 * Dumbbells (film), a 2014 film
 * The Dumbbell Nebula is a planetary nebula (M27), which is shaped like a dumbbell
 * Physics: A p atomic orbital has the approximate shape of a pair of lobes on opposite sides of the nucleus, or a somewhat dumbbell shape
 * The name "dumbbell tenement" was also used for the apartment buildings in the Lower East Side of New York City in the late 19th century
 * A "dumbbell interchange" is a type of road interchange
 * Dumbbell interstitials, a type of crystal defect
 * Dumbell Mountain, in Washington state, US
 * DUMBBELLS, mnemonic for cholinergic overdose, also known as SLUDGE syndrome