M Anwar Hossain (Bengali: মো. আনোয়ার হোসেন; born 20 August 1949) is a Bangladeshi plant scientist and writer. He is a Professor at the Department of Biochemistry and Molecular Biology in University of Dhaka and President of the Bangladesh Society of Biochemistry and Molecular Biology. He is known for his research on photosynthesis and the development of the flood-tolerant rice variety and is considered as one of the pioneers of biotechnology and genetic engineering in Bangladesh. Hossain was the founding Project Director (2000–2001) of the Department of Genetic Engineering and Biotechnology, University of Dhaka and is the former vice-chancellor of Jahangirnagar University. He was a Freedom Fighter of the Bangladesh Liberation War of 1971 during which he served as a Staff Officer of Sector 11.