Subhalagnam (transl. Auspicious period) is a 1994 Indian Telugu-language film co-written, directed, and scored by S. V. Krishna Reddy. It stars Jagapathi Babu, Aamani, and Roja. The film was produced by K. Venkateswara Rao under the Sri Priyanka Pictures banner and presented by C. Aswani Dutt. The plot follows a greedy woman who makes a financial deal to let another woman marry her husband.

Released on 30 September 1994, the film was a box office success. It received three Nandi Awards, inducing the Best Feature Film in addition to two Filmfare Awards. The film was remade in Tamil as Irattai Roja (1996), in Hindi as Judaai (1997), in Kannada as Ganga Yamuna (1997), and in Malayalam as Sundara Purushan (2001).