Aah is a 1953 Indian Hindi-language romantic drama film directed by Raja Nawathe and produced by Raj Kapoor and starring Kapoor and Nargis in the lead roles. This was Nawathe's first independent directorial venture. He had previously worked as assistant director to Raj Kapoor in Aag (1948), Barsaat (1949) and Awaara (1951).

The film was rated "Below Average" at the box office, but included hit songs such as "Raja Ki Aayegi Baaraat", "Aaja Re Ab Mera Dil Pukara" and "Jaane Na Nazar". The song "Chhoti Si Yeh Zindagani" sung by Mukesh was also picturised on him. Subsequently, the film was later dubbed in Tamil as Avan (dialogues by S. D. Sundharam) and Telugu as Prema Lekhalu. Ah Bu Dünya, a Turkish remake by Nuri Ergün, was released in 1965.