Eeram (transl. Moisture) is a 2009 Indian Tamil-language horror thriller film written and directed by Arivazhagan in his directorial debut and produced by S. Shankar. The film stars Aadhi Pinisetty, Nandha and Sindhu Menon. Saranya Mohan, Srinath, Lakshmi Ramakrishnan, and Krishna play supporting roles. The music was composed by S. Thaman in his debut Tamil film with cinematography by Manoj Paramahamsa and editing by Kishore Te.

The Filming began shooting in January 2008 was mostly shot in Chennai, Srirangam, Trichy, Coimbatore, Hyderabad, Visakhapatnam, and Pondicherry. The film was released on 11 September 2009 and was as a commercial success at the box office. The film received critical acclaim for its theme, narrative, cast performance, cinematography, musical score, and direction. Over the years it has attained cult status. The Telugu dubbed version of the film titled Vaishali released on 27 May 2011 and was commercially successful in Andhra Pradesh.