Humshakal (transl. Lookalike) is a 1974 Hindi-language film directed by Jambulingam. The film stars Rajesh Khanna, Tanuja, Moushumi Chatterjee in lead roles. The music was by R. D. Burman and lyrics were by Anand Bakshi. The film was a remake of the 1970 Kannada film Baalu Belagithu, which was also remade in Telugu as Manchivadu (1973) and in Tamil as Oorukku Uzhaippavan (1976).

The songs of the film were extremely popular, with the Kishore-Asha duet song "Hum Tum Gum Sum" being on the top of the charts for more than a year. The tune of the Rafi-Lata duet "Kahe Ko Bulaya" was even adapted as a religious song in subsequent decades. Kishore Kumar considered the song "Rasta Dekhe Tera Vyakul Man Mera" as close to his heart.

As per the review by The Hindu newspaper, the box office collections of India, it is R. D. Burman who stands out with some delightful compositions and the box office status is mentioned as average hit."