A Ding Dong is chocolate cake that is sold by Hostess Brands. It is round with a flat top and bottom, about three inches in diameter and a little more than an inch high, similar in shape to a hockey puck. A white creamy filling is injected into the center, and a thin coating of "chocolate" glaze covers the entire cake. The cake was originally wrapped in a square of thick aluminium foil, enabling it to be carried in lunches without melting the chocolate glaze.

The Ding Dong is similar to other cream-filled cakes, such as Arcade Vachon's Jos. Louis introduced before 1934 and still in production. Hostess began marketing its Ding Dong in 1967. The name was given to coincide with a television ad campaign featuring a ringing bell.

The company marketed the snacks on the East Coast as Big Wheels, to avoid confusion with the Ring Ding, a similar (and pre-existing) treat by Drake's Cakes. The names were consolidated in 1987, when a short-lived merger of Drake's with Hostess' parent company (then Continental Baking Company) briefly resolved the Ring Ding/Ding Dong conflict. When the merged company broke up, however, Hostess was forced to cease, once again, using the Ding Dongs name in areas where Ring Dings were available. The compromise sound-alike name King Dons lasted until Interstate Bakeries Corporation, which had recently merged with Hostess' parent company, bought Drake's in 1998. The Hostess product is now sold under the name Ding Dongs throughout the United States. However, the snack is still sold as the King Don in Canada.