Malcolm Stevenson Forbes  was an American entrepreneur and politician most prominently known as the publisher of Forbes magazine, which was founded by his father B. C. Forbes. He was known as an avid promoter of capitalism and free market economics and for an extravagant lifestyle, spending on parties, travel, and his collection of homes, yachts, aircraft, art, motorcycles, and Fabergé eggs.

Forbes was born on August 19, 1919, in Englewood, New Jersey, the son of Adelaide Mary (Stevenson) and Scottish-born financial journalist and author B. C. Forbes. He graduated from The Lawrenceville School in 1937. In 1941 he received an A.B. from the School of Public and International Affairs, now Princeton School of Public and International Affairs, at Princeton University, with a 176-page senior thesis, "Weekly Newspapers - An Evaluation." Forbes enlisted in the Army in 1942 and served as a machine gunner in the 84th Infantry Division in Europe, rising to the rank of staff sergeant. Forbes received a thigh wound in combat, and received a Bronze Star and a Purple Heart.