Man in a Suitcase is a British television private eye thriller series produced by Lew Grade's ITC Entertainment. It originally aired in the United Kingdom on ITV from 27 September 1967 to 17 April 1968. ABC broadcast episodes of Man in a Suitcase in the United States from 3 May to 20 September 1968.

Lew Grade, Baron Grade, was a Russian-born British media proprietor and impresario. Originally a dancer, and later a talent agent, Grade's interest in television production began in 1954 when he founded the Incorporated Television Company to distribute programmes, and following the success of The Adventures of Robin Hood decided to focus on bringing them to the American market. Grade had some success in this field with such series as Gerry Anderson's many Supermarionation series such as Thunderbirds, Patrick McGoohan's The Prisoner, and Jim Henson's The Muppet Show. Later, Grade invested in feature film production, but several expensive box-office failures caused him to lose control of ITC, and ultimately resulted in the disestablishment of ATV after it lost its ITV franchise.