A popper is a jalapeño pepper half which has been stuffed with cream or cheddar cheese, breaded, and then deep fried. It is a popular treat for aficionados of Sonic Drive-In and Arby's fast-food restaurants.

Popper the surname of philosopher Karl Popper, cellist David Popper, and musician John Popper.

The singular of the family of drugs colloquially known as 'poppers', a subset of a class of chemicals known as alkyl nitrites.

An Australian brand name for a small tetra pack of juice, complete with a straw, designed for individual consumption.

Popper buttons is another word for "press studs".