Santhosh Keezhattoor is an Indian actor known for his work in Malayalam films and television. Before working in films, he worked as a theatre artist and programme producer.

Santhosh hails from Taliparamba, Kerala, India. At the age of 16, he joined Kannur's professional theatre group Sangatha Chethana. He won acclaim for a solo drama that narrated the life of Ochira Velukkutty. He also performed in a theatre performance called Pen Nadam which was critical acclaimed.