Sidhartha Siva is an Indian film director, producer, actor, screenwriter and lyricist, who works in Malayalam cinema.

He started his film career by directing telefilms and short films. He won his first National Film Awards at the 60th National Film Awards, he won the Indira Gandhi Award for Best Debut Film of a Director for his film 101 Chodyangal (2012).

His film Ain won the best feature film in Malayalam at 62nd National Film Awards and the best story at the Kerala State Film Awards in 2015. In 2020 he won the Kerala State Film Awards for Best Director for Ennivar