Idhu Kadhal Varum Paruvam () is a 2006 Indian Tamil-language coming-of-age film directed by Kasthuri Raja. The film stars several newcomers including Arish Kumar, Prete Bhutani and Lakshmi Priya alongside Kiran Rathod. It chronicles the coming-of-age of a teenager who is a school student. The film was released on 1 December 2006. As of 2026, it is the last film directed by Kasthuri Raja.
Surya, the school-going 15-year old boy finds himself attracted to his classmate Raji. Later he gets infatuated with a model Manasi. Finally, his lust grows for a call girl Swarna. As Swarna's husband is a pimp, she also shows some interest towards Surya. Surya and Swarna elope. But towards the end Swarna turns to preach. She advises Surya to be a good role model student and also to return to his parents.
The songs were shot in places including Rameswaram, Kumbakkarai, Visakhapatnam, Kodaikkanal, Manjalaru Anai and Theni.
Kasthuri Raja made his debut as music composer with this film and also wrote lyrics for all songs.
The film was released on 1 December 2006. Malini Mannath from Chennai Online wrote that "The message if any, is wasted again, as [Kasthuri Raja's] target-audience (?) would be nowhere in the theatre". Sify wrote, "[Kasthuri Raja] once again takes his usual route of sex, smut and sleaze with Ithu Kathal Varum Paruvam which looks more like a soft-porn movie".