Debonair can refer to:

• Debonair (airline), a British airline which ceased operations in October 1999
• Debonair (magazine), an Indian men's magazine
• Debonair Magazine (U.S.), a U.S. men's magazine
• The Debonaires, a transgressive dirty joke that has been told by numerous stand-up comedians since the vaudeville era
• Beechcraft Debonair, a model variant of the Beechcraft Bonanza, a civil aircraft introduced in 1947 by the Beech Aircraft Corporation
• Mitsubishi Debonair, a mid-size sedan by Mitsubishi Motors
• Debonairs Pizza, a popular pizza chain in South Africa.
• Debonaire, a compilation by dope for the Scream 3 soundtrack
• The early name of The Flairs, an American doo wop group
• The fourth track on Gentlemen, a 1993 album by The Afghan Whigs