A parley (from French: parler – "to speak") refers to a discussion or conference, especially one designed to end an argument or hostilities between two groups of people. The term can be used in both past and present tense; in present tense the term is referred to as parleying. In some cases, opposing parties would signal their intent to invoke parley by using a white flag, however the use of a white flag to invoke or request parley is not considered mandatory.

The term parley has been used to refer to numerous high-profile meetings of the 20th century, including the London and Paris Conferences held in 1954 to determine the status of West Germany.