Albert Howard Blumenthal (October 13, 1928 – July 8, 1984) was an American lawyer and politician from New York.
Blumenthal was born on October 13, 1928, in Flatbush, Brooklyn, New York City, the son of Bennet M. Blumenthal (1888–1980) and Matilda Blumenthal. He graduated B.A. from the College of William & Mary in 1949, and LL.B. from New York University School of Law in 1951. He served in the U.S. Army from 1951 to 1953. He was admitted to the bar in 1953, practiced law in New York City, and entered politics as a Democrat. On May 18, 1958, he married Joel Marie Winik, and they had four children.
Blumenthal was a member of the New York State Assembly from 1963 to 1976, sitting in the 174th, 175th,176th, 177th, 178th, 179th, 180th and 181st New York State Legislatures. He was Chairman of the Committee on Health from 1966 to 1968. In 1973, he ran in the Democratic primary for Mayor of New York City but came in third, behind Abraham Beame and Herman Badillo. At the general election in November, Blumenthal ran on the Liberal ticket but was again defeated by Beame. Blumenthal was Majority Leader of the State Assembly in 1975 and 1976.