Sasidharan Arattuvazhi (25 August 1955 – 21 January 2001) was an Indian playwright and screenwriter.

Within a career spanning more than two decades, he wrote 20 screenplays and 12 plays.

He developed a keen interest in writing screenplays for films.

He was then approached by Rajasenan, for whom he wrote the family drama Ayalathe Adheham.

He went on to write screenplays for 18 more films, including Yoddha, comic thriller CID Unnikrishnan B.A., B.Ed., family drama Kaliveedu, and Cheppadividya.