William F. Bleakley (November 11, 1883 — October 2, 1969) was an American attorney, politician, and judge from Yonkers, New York. He is best known for being the first Westchester County Executive, and for being the unsuccessful Republican nominee for governor in 1936. Born in Verplanck, New York, Bleakley graduated from Cornell Law School and became an attorney in Yonkers. He served terms as a judge of the Yonkers city court and Westchester County court. From 1928 to 1936, he was a justice of the New York Supreme Court.