Nandi, Veendum Varika (transl. Thank you, please visit again) is a 1986 Indian Malayalam-language comedy film produced by M. Sunil Kumar under SS Movie Production, directed by P. G. Viswambharan and written jointly by Jagadish and Sreenivasan. It features an ensemble cast of Mammootty, Suresh Gopi, Urvashi, M. G. Soman and Sreenivasan in the lead roles. The cinematography was handled by Vipin Mohan. The film features original songs and score composed by Shyam.

The film revolves around Mohandas C. K. (Mammootty), a teacher who on being forced by his father (Sankaradi) joins the police force as a Sub-inspector. However, he is reluctant to become a police officer as he is scared and cowardly in nature. He gets his first posting in a village were corruption is rampant. The plot explores how he overcomes his cowardly nature and brings the corrupt Ananthan Nair (M. G. Soman) to justice.

The film was shot extensively in and around Ottasekharamangalam in Thiruvananthapuram district. Principal photography was done in 1-1.5 months. The film was released on 12 September 1986 on the occasion of Onam and was a commercial failure. The film was among the few commercially unsuccessful films in which Mammootty had starred in that year. However, the film has over the years acquired a cult following. The film was later remade into Tamil as Kavalukku Kettikaran.