Fast food advertising promotes fast food products and utilizes numerous aspects to reach out to the public.

The Burger wars are a series of off-and-on comparative advertising campaigns consisting of mutually-targeted advertisements that highlight the intense competition between hamburger fast food chains McDonald's, Wendy's, Burger King and others in the United States. The term first came into use during the late 1970s due to an attempt by Burger King to generate increased market and mind-share by attacking the size of bigger rival McDonald's hamburgers.