Ananda Thandavam (transl. Dance of Happiness) is a 2009 Tamil-language romantic drama film, an adaptation of Sujatha's serialized novel Pirivom Santhippom. The film was directed by A. R. Gandhi Krishna and produced by V. Ravichandran of Aascar Films. The music was composed by G. V. Prakash Kumar with editing by V. T. Vijayan and cinematography by Jeeva Shankar.

The film stars Siddharth Venugopal, Tamannaah, Rukmini Vijayakumar, and Rishi. The characters Raghu (Siddharth) and Madhu (Tamannaah): their love story captured so many hearts that Sujatha, who had initially finished the first novel, started the second part due to high demand from readers.

The film was released on 10 April 2009 to negative reviews and became a commercial failure at the box office. But over the years it has achieved cult status owing to the success of Pirivom Santhippom.