Vaayai Moodi Pesavum (transl. Speak with the mouth shut) is a 2014 Indian Tamil-language satirical romantic comedy film directed by Balaji Mohan. Produced by Varun Manian and S. Sashikanth under their respective production houses, Radiance Media Group and YNOT Studios, the film stars Dulquer Salmaan, in his maiden Tamil film, with Nazriya Nazim as female lead role while Madhoo, appearing in prominent role. It was filmed simultaneously in Tamil and Malayalam, the latter being titled as Samsaaram Aarogyathinu Haanikaram (transl. Speaking is injurious to health) with a slightly changed supporting cast.

Principal photography commenced in November 2013 at Munnar and Kodaikanal. The film's technical crew includes newcomer Sean Roldan as the music director, Soundararajan as the cinematographer and Abhinav Sunder Nayak as the editor respectively. Both the versions were released on 25 April 2014, receiving positive reviews from critics.