Alfred Washburn Benson, also known as Albert Washburn Benson[1] (July 15, 1843 – January 1, 1916) was an American attorney, politician, and jurist who served as a United States senator from Kansas.

Born in Poland, Chautauqua County, New York, Benon moved to Jamestown, New York, in 1860, and attended Jamestown and Randolph Academies.

He was a judge of the fourth judicial district of Kansas from 1885 to 1897, and was appointed as a Republican to the U.S. Senate to fill the vacancy caused by the resignation of Joseph R. Burton; he served from June 11, 1906, to January 23, 1907, when a successor was elected.

He was an unsuccessful candidate for election in 1907 to fill this vacancy, and was appointed and subsequently elected justice of the Kansas Supreme Court, on which he served from 1907 to 1915, when he resigned.

He retired from public life and died in Topeka in 1916, aged 72.