A bellows is a device for delivering pressurized air in a controlled quantity to a controlled location.

Bellows may also refer to:

Things Bellows (ornament), a decorative pattern used in architecture from the 14th to the 16th century Bellows (photography), accordion-like, pleated expandable part of a camera Metal bellows, elastic vessels that can be compressed when pressure is applied to the outside of the vessel Expansion joints Lungs Dr. Bellows, a fictional character from the sitcom series I Dream of Jeannie

Places Bellows Falls, Vermont Mount Bellows, mountain in Antarctica Bellows Air Force Station Neptune's Bellows, a channel on the southeast side of Deception Island, South Shetland Islands

People Bellows (surname) Bellows (musician), American musician

See also Bellow (disambiguation)