Hall Stoner Lusk (September 21, 1883 - May 15, 1983) was a United States Senator from Oregon. Born in Washington, D.C., he attended Georgetown Preparatory School from 1897 to 1900, graduated from Georgetown University in 1904 and from Georgetown Law School in 1907. He was secretary to a Chief Justice of the United States Court of Appeals for the District of Columbia Circuit from 1906 to 1909, was admitted to the District of Columbia bar in 1907 and to the Oregon bar in 1910, and commenced practice in Portland. He was an assistant United States Attorney of Oregon from 1918 to 1920 and was unsuccessful for election to the Oregon Legislature in 1922.
Lusk was circuit judge of Multnomah County from 1930 to 1937, and was appointed, and subsequently elected and reelected to the Oregon Supreme Court, serving from 1937 until his resignation on March 15, 1960. He was appointed on March 16, 1960 as a Democrat to the U.S. Senate to fill the vacancy caused by the death of Richard L. Neuberger and served from March 16, 1960, to November 8, 1960. He was not a candidate for election to a full term and returned to Oregon Supreme Court as a justice pro tempore in 1961, serving until 1968. He engaged in the revision of Oregon Supreme Court procedures as justice emeritus and resided in Beaverton until his death there in 1983. Interment was at Mt. Calvary Cemetery, Portland.