Ardhangi (English: Wife; Telugu: అర్ధాంగి) is a 1955 Telugu, drama film, produced & directed by P. Pullaiah on Ragini Pictures banner. Starring Akkineni Nageswara Rao, Savitri in the lead roles and music jointly composed by Master Venu & B.Narasimha Rao. The film is based on Bengali novel Swayamsidda written by Manilal Banerjee. The film recorded as Super Hit at the box office. The film has received the National Film Award for Best Feature Film in Telugu and the Filmfare Award for Best Film - Telugu.

The film was remade in Tamil as Pennin Perumai in Hindi twice as Bahurani in 1963 and as Jyoti in 1981.The story of Swayamsiddha was also similar to the Kannada novel Mallammana Pavaada by B. Puttaswamayya which was adapted into 1969 movie titled Mallammana Pavaada for which screenplay was written by the director of this movie P. Pullaiah based on this movie. The Kannada novel Mallammana Pavaada also inspired the 1987 Tamil movie Enga Chinna Rasa which went on to be remade in Telugu as Abbaigaru , in Hindi as Beta, in Kannada as Annayya and in Oriya as Santan (1998).