Arthur Raymond Robinson (March 12, 1881 - March 17, 1961) was a United States Senator from Indiana. Born in Pickerington, Ohio, he attended the common schools, graduated from the Ohio Northern University in 1901, the Indiana Law School at Indianapolis in 1910, and the University of Chicago in 1913. He was admitted to the bar in 1910 and commenced practice in Indianapolis; he was a member of the Indiana Senate from 1914 to 1918, and was the Republican floor leader during the entire period. During the First World War he served in the U.S. Army as a first lieutenant, captain, and major, and served in France in the Army of Occupation. He resumed the practice of law and was judge of Marion County Superior Court in 1921-1922. He resumed the practice of law in Indianapolis, in 1922 and was appointed on October 20, 1925 to the U.S. Senate and subsequently elected on November 2, 1926, to fill the vacancy caused by the death of Samuel M. Ralston. He was reelected in 1928, and served from October 20, 1925, to January 3, 1935; in 1934 he was an unsuccessful candidate for reelection. While in the Senate he was chairman of the Committee on Pensions (Seventieth through Seventy-second Congresses).
Robinson practiced law in Indianapolis until his death there in 1961; interment was in Washington Park Cemetery East.