Bernard Allen Duffy (August 18, 1893 – February 9, 1962) was a right handed Major League Baseball pitcher who played with the Pittsburgh Pirates from 1912 to 1919. Also known as Barney Duffy and Dan Duffy, Barney played alongside famous Pittsburgh Pirate Honus Wagner (known as the Flying Dutchman). The Oklahoma native began his baseball career in 1910 in Helena, Montana.He was purchased by the Pirates in the fall of 1913. He then was sent to St. Joe in the Western League where he played during 1914. Recalled that fall, he was turned over to Youngstown in the Central league, remaining there until the club disbanded. In 1916 he was with Grand Rapids and then sold to Wheeling. The pitcher was 5'11" and weighed around 180 lbs.