The O-Pee-Chee Company, Ltd. was a Canadian confectionery company founded in 1911 based in London, Ontario. The company was best known as a maker of trading cards. It entered into a marketing agreement with the Topps Company in 1958, releasing several collections of baseball, gridiron football and ice hockey cards.

A trading card is a small card, usually made out of paperboard or thick paper, which usually contains an image of a certain person, place or thing and a short description of the picture, along with other text. There is a wide variation of different types of cards.