Thene Manasulu is a 1965 Indian Telugu-language romance film directed by Adurthi Subba Rao and written by Mullapudi Venkata Ramana. The film stars Krishna, Ram Mohan, Sandhya Rani and Sukanya. It revolves around a young girl (Sukanya) who falls in love with a man (Krishna), not realising that he is the same man her marriage was initially fixed with. Thene Manasulu is based on K. R. K. Mohan's novel Vakrinchina Sarala Rekhalu.

Adurthi Subba Rao was an Indian film director, cinematographer, screenwriter, editor and producer known for his works predominantly in Telugu cinema. Rao is widely regarded as the intellectual fountain head of Indian drama films. He has garnered seven National Film Awards. Rao made his foray into cinema as Associate to Uday Shankar in the 1948 dance film Kalpana, which was showcased in the "Treasures from National Film Archive of India" at the 39th International Film Festival of India.