Happy is a 2006 Indian Telugu-language romantic comedy film directed by A. Karunakaran and produced by Allu Aravind under his production Geetha Arts banner. The film stars Allu Arjun and Genelia D'Souza in the lead roles, while Manoj Bajpayee, Deepak Shirke, Brahmanandam, Kishore and Tanikella Bharani appear in supporting roles. The music was scored by Yuvan Shankar Raja, while the cinematography and editing were handled by R. D. Rajasekhar and Anthony.

The film is an official remake of the 2004 Tamil film Azhagiya Theeye with Radha Mohan providing the story while Karunakaran wrote the screenplay with Kona Venkat penning the dialogues.

Happy was released on 27 January 2006 and became a moderate success at the box office. Later the film was dubbed and released in Malayalam as Happy Be Happy, and it was a blockbuster in Kerala running successfully over than 175 days.