"Henny Penny", more commonly known in the United States as "Chicken Little" and sometimes as "Chicken Licken", is a European folk tale with a moral in the form of a cumulative tale about a chicken who believes that the world is coming to an end. The phrase "The sky is falling!" features prominently in the story, and has passed into the English language as a common idiom indicating a hysterical or mistaken belief that disaster is imminent. Similar stories go back more than 25 centuries and "Henny Penny" continues to be referred to in a variety of media.

In a cumulative tale, sometimes also called a chain tale, action or dialogue repeats and builds up in some way as the tale progresses. With only the sparest of plots, these tales often depend upon repetition and rhythm for their effect, and can require a skilled storyteller to negotiate their tongue-twisting repetitions in performance. The climax is sometimes abrupt and sobering as in "The Gingerbread Man." The device often takes the form of a cumulative song or nursery rhyme. Many cumulative tales feature a series of animals or forces of nature each more powerful than the last.