Unnai Charanadaindhen is a 2003 Indian Tamil-language romantic drama film directed by Samuthirakani, in his directoral debut starring Venkat Prabhu, S. P. B. Charan and Meera Vasudevan. It was produced by Charan's Capital Film Works and features a soundtrack composed by his father S. P. Balasubrahmanyam. Although the film was made on a small budget and fetched critical acclaim upon release, also winning two Tamil Nadu State Film Awards, Charan has said that it was not a profitable venture. Samuthirakani later directed the Telugu remake Naalo (2004), with Charan reprising his role.

P. Samuthirakani is an Indian actor and director who works predominantly in Tamil films besides appearing in a number of Telugu and Malayalam films. He worked as an assistant to director K. Balachander, in Paarthale Paravasam. He won the National Film Award for Best Supporting Actor in 2016 for Visaranai.