Popper may refer to:

• Popper (surname), including a list of people with the name
• Jalapeño popper, a type of food
• Poppers, a slang term for alkyl nitrites inhaled for recreational purposes
• Poppers, a brand of frozen food owned by Heinz
• Popper (see Popping (dance)), a person dancing in a certain street/funk style
• Popper, a floating fishing popper or fly with a cupped or flat, forward-facing indentation that splashes the surface of the water with a popping sound when tugged
• A hip pop musician
• Popper, a ball that rises sharply from the pitch when bowled ('pops up') in cricket
• Popper, a juicebox (Australian English)
• Popper buttons, another term for "snap fasteners"
• Poppers, an alternate name for tearaway pants in British English
• Party popper, a small 'toy' filled with confetti streamers and a small explosive charge to release them
• Bang snaps, small novelty fireworks that produce a loud snapping sound when thrown on the ground
• Poppers, a slang term for Papadum, an Indian crisp wafer or cracker
• Poppers, a cartoon strip by Jerry Mills
• Eye popper, a dome-shaped children's toy