Masataka Murata (村田 正太, Murata Masataka, October 5, 1884 – December 20, 1974) was a Japanese physician. He invented a Murata's method for the serodiagnosis of syphilis, and studied leprosy. He worked at the Osaka Prefectural Sotojima Sanatorium and was the director between 1926 and 1933. He treated leprosy patients as respectable persons. After the Sotojima Incident, in which communists were against religious societies, he resigned as the director of the sanatorium. Later, he personally studied leprosy at his house, and died in 1974.