Narendra Nayak (born 5 February 1951) is a rationalist, sceptic, and godman debunker from Mangalore, Karnataka, India. Nayak is the current president of the Federation of Indian Rationalist Associations (FIRA). He founded the Dakshina Kannada Rationalist Association in 1976 and has been its secretary since then. He also founded an NGO called Aid Without Religion in July 2011. He tours the country conducting workshops to promote scientific temper and showing people how to debunk godmen and frauds. He has conducted over 2000 such demonstrations in India, including some in Australia, Greece, England, Norway, Denmark, Sri Lanka and Nepal. He is also a polyglot who speaks 9 languages fluently, which helps him when he is giving talks in various parts of the country.