Aah is a 1953 black and white Bollywood romantic drama film starring Raj Kapoor and Nargis in lead roles. The film was produced by Raj Kapoor and directed by Raja Nawathe. 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 has various hit songs like "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 . The film was remade in Turkish as Ah Bu Dünya (1965), Boş Çevçere (1969).