McFarlin (July 27, 1866 – August 11, 1942) was an American oilman, cattle rancher, philanthropist, and businessman who is best known for amassing a fortune by drilling for oil near Glenpool, Oklahoma with his nephew and son-in-law, James A.
Chapman.
He was among the early pioneer oilmen who established the state of Oklahoma as a center of the oil industry in the early part of the 20th century.