Kosher style refers to foods commonly associated with Jewish cuisine but which may or may not actually be kosher. It is a stylistic designation rather than one based on the laws of kashrut. In some U.S. states, the use of this term in advertising is illegal as a misleading term under consumer protection laws.

Kashrut is a set of dietary laws dealing with the foods that Jewish people are permitted to eat and how those foods must be prepared according to Jewish law. Food that may be consumed is deemed kosher, from the Ashkenazi pronunciation of the term that in Sephardic or Modern Hebrew is pronounced kashér, meaning "fit". Food that may not be consumed, however, is deemed treif, also spelled treyf.