Dr. Ahmad Mattar (born 13 August 1940), whose full name is Ahmad bin Mohamed Mattar, is a former Singaporean politician and member of the Cabinet. An alumnus of the Raffles Institution, Ahmad Mattar graduated from the University of Singapore with a degree in physics in 1963. He completed his master's degree at the University of Sheffield on a Colombo Plan scholarship and then his doctorate at the University of Singapore. Prior to entering politics, he was a lecturer at Singapore Polytechnic and conducted the first large-scale study on the effects of traffic noise on housing estates; the study would later inform future legislations and studies on traffic noise. In 1972, he ran for the Leng Kee Single Member Constituency at the recommendation of Abdul Rahim Ishak, then the MP for Siglap SMC.