Thulluvadho Ilamai (transl. Exuberance of Youth) is a 2002 Indian Tamil-language teen drama film written by Selvaraghavan, with direction credited to his father Kasthuri Raja. The film marks the acting debut of Selvaraghavan's brother Dhanush, who plays the lead role. The film also features other newcomers Abhinay, Sherin, Ramesh, Shilpa and Gangeshwari in major roles, and features prominent film personalities Vijayakumar, Ramesh Khanna, and Pyramid Natarajan playing supporting roles.

The film depicts the story of six high-school classmates: three boys and three girls, coming from different strata of society, who have each their own problems in their respective families and escape from their homes, deciding to live together on their own with the help of an older friend of theirs.

While the soundtrack was composed by Yuvan Shankar Raja, Viji Manuel composed the score. The film was released on 10 May 2002. The film was remade in Telugu as Juniors (2003) with Sherin reprising her role.