Om Praksh Bahl (1927–2004) was a US-based Indian molecular biologist, academic and a Distinguished Professor of the State University of New York. He was known for his studies on Human chorionic gonadotropin, popularly known as the pregnancy hormone. He was associated with the World Health Organization as an adviser to their Population Council and was a member of the Population Research Committee of the National Institutes of Health. The Government of India awarded him the third highest civilian honour of the Padma Bhushan, in 1973, for his contributions to science and engineering.