Mannar Mathai Speaking is a 1995 Indian Malayalam-language comedy thriller film produced and directed by Mani C. Kappan and written by Siddique-Lal. The film stars Mukesh, Innocent, Sai Kumar, Vani Viswanath, Biju Menon, Geetha Vijayan, K. P. Ummer, Kaviyoor Ponnamma, Janardhanan, Indrans, Vijayaraghavan, Sukumari, Harisree Ashokan and Cochin Haneefa. It is a sequel to the 1989 film Ramji Rao Speaking, and is followed by Mannar Mathai Speaking 2 (2014). Vani Viswanath made her debut in this film as a leading actress.

The film was a commercial success. It is loosely based on Alfred Hitchcock's 1958 film Vertigo (which was an adaptation of the 1954 novel The Living and the Dead by Boileau-Narcejac). Priyadarshan adapted certain subplots of the film for his Hindi film, Bhagam Bhag (2006), which went on to be remade in Telugu as Brahmanandam Drama Company. Writer Siddique later reused the story and tweaked it for his Tamil film Sadhu Miranda (2008) and Telugu film Maaro (2011).