Jacob Millman (1911 in Novohrad-Volynskyi, Russian Empire – May 22, 1991 in Longboat Key, Florida) was a professor of electrical engineering at Columbia University. He immigrated to the United States in 1913^[1] with his mother, Gertrude (Nachshen) Millman and sister Rebecca.

Millman received a PhD from MIT in 1935.^[1] He joined Columbia University in 1951, and retired in 1975. From 1941 to 1987, Millman wrote eight textbooks on electronics, and he helped develop radar systems.^[1] Millman's theorem (otherwise known as the parallel generator theorem) is named after him. He received in 1970 the IEEE Education Medal.^[2]

Millman died of pneumonia at his home in Longboat Key, Florida in 1991.^[1]