In Harihar Nagar is a 1990 Indian Malayalam-language comedy thriller film written and directed by Siddique-Lal. The film, set in the fictional locality of Harihar Nagar follows four unemployed bachelors: Mahadevan (Mukesh), Govindan Kutty (Siddique), Thomas Kutty (Ashokan) and Appukuttan (Jagadish) who attempts to woo their new neighbour Maya, who is in town to investigate the mysterious circumstances surrounding the death of her brother. It also stars Rizabawa, Kaviyoor Ponnamma and Rekha, with Suresh Gopi and Sai Kumar making cameo appearances. The music was composed by S. Balakrishnan.

Mukesh Madhavan, known mononymously as Mukesh, is an Indian actor, film producer, television presenter, and politician who predominantly works in Malayalam cinema besides also having sporadically appeared in Tamil-language films. In a film career spanning four decades, he has acted in over 275 Malayalam films.