Spencer Truman Olin

Spencer Truman Olin (August 20, 1900 – April 14, 1995) was an American businessman and philanthropist. He was an executive of the Olin Corporation, founded in 1892 by his father, Franklin W. Olin, eventually serving as first vice president of Olin Industries, though he reduced his involvement with the company after its 1954 merger with Mathieson.

He was raised in Alton, Illinois. In 1921 he graduated from Cornell University, where he had studied mechanical engineering, and where he had joined Kappa Sigma fraternity like his father.

Olin was very active in the Republican Party throughout much of his adult life. He was an important fundraiser for Dwight D. Eisenhower and served as the party's national finance chairman from 1958 to 1960 and treasurer of the Republican National Committee from 1960 to 1962. The win helped launch Palmer's career. Olin also gave generously to Cornell, his alma mater, where the research chemistry lab is named after him, as well as the annual Olin Lecture. Washington University School of Medicine was also a leading beneficiary. Both universities received $30 million in $1.5M annual installments starting in 1986.

Spencer Olin died at his home in Jupiter Island, Florida, in 1995 at age 94.