Courier (Russian: Курьер, romanized: Kuryer), also known as Messenger Boy, is a 1986 Soviet romantic comedy-drama film directed by Karen Shakhnazarov based on a screenplay by Alexander Borodyansky and Shakhnazarov's short story of the same name, published in the April 1982 issue of the magazine Yunost. The plot revolves around the problems of perestroika-era youth and was filmed by the Creative Association of Comedy and Musical Films of the Mosfilm Studio from May to August 1986. It is one of the first Soviet films to feature breakdancing.

On 10 May 1987, Courier won the Children's Jury Prize and the Central Committee of the Young Communist League of Georgia Prize "for a fascinating and witty solution to the complex theme of the formation of a young man's personality" at the 20th All-Union Film Festival in Tbilisi. On 17 July, the film received the Special Jury Prize in the full-length feature film competition at the 15th Moscow International Film Festival. On 17 December 1988, the film was nominated for the Nika Award for Best Soundtrack (composer Eduard Artemyev).