Achcham Yenbadhu Madamaiyada (transl. Fear is Foolishness) is a 2016 Indian Tamil-language romantic action thriller film written and directed by Gautham Vasudev Menon. The film stars Silambarasan and Manjima Mohan (in her Tamil debut), while Baba Sehgal plays the role of a corrupt cop. The film revolves around a youngster who embarks on a road trip with his lady-love during which he meets with an accident which causes things to get out of control.

Principal photography commenced in November 2013, however, in June 2014, filming schedules were postponed until Menon completed his other project Yennai Arindhaal (2015) with Ajith Kumar. Filming recommenced on 21 February 2015, majority of shooting was done in Chennai, India. The film features film score and soundtrack album composed by A. R. Rahman, with lyrics by Thamarai. It was simultaneously made in Telugu as Sahasam Swasaga Sagipo with Naga Chaitanya replacing Silambarasan and Manjima Mohan in the same role. This film's title is based on a song from Mannathi Mannan (1960).