Rebar is a steel bar or mesh of steel wires used as a tension device in reinforced concrete and reinforced masonry.
Rebar may also refer to:
Rebar (Taiwan), a company in Taiwan Rebar art and design studio, an art studio in San Francisco, United States ReBAR, an abbreviation for resizable BAR, which is a feature in the PCI configuration space
People with the surname Alex Rebar, American actor and filmmaker Edward Rebar, American biologist Kelly Rebar (born 1956), Canadian playwright and screenwriter