Abraham Thomas Kovoor (10 April 1898 – 18 September 1978) was an Indian professor and rationalist who gained prominence after retirement for his campaign to expose as frauds various Indian and Sri Lankan "god-men" and so-called paranormal phenomena. His direct, trenchant criticism of spiritual frauds and organized religions was enthusiastically received by audiences, initiating a new dynamism in the Rationalist movement, especially in Sri Lanka and India.