Appu is a 2002 Indian Kannada-language romantic action film directed by Puri Jagannadh and produced by Parvathamma Rajkumar under Poornima Enterprises. The film stars debutants Puneeth Rajkumar and Rakshita, alongside Avinash Yelandur, Srinivasa Murthy and Sumithra. The music was composed by Gurukiran, while cinematography and editing were composed by K. Datthu and S. Manohar.

Appu was released on 26 April 2002 and completed a 200-day run in theatres. Due to this film, Puneeth Rajkumar came to be known as "Appu" among the masses. The film was remade in Telugu in 2002 as Idiot, in Tamil in 2003 as Dum, in Bengali in 2006 as Hero and in Bangladeshi Bengali in 2008 as Priya Amar Priya - making it the second Kannada film to be remade in Bengali in both India and Bangladesh after Anuraga Aralithu. It was the third Kannada movie to be remade in four languages after School Master and Anuraga Aralithu.