Charles Foster Tillinghast Jr. (November 11, 1913 – July 22, 1995) was a yachtsman and naval officer. He was the son of Charles Foster Tillinghast Sr. He was born in Providence, Rhode Island and was the scion of a prominent family in Rhode Island history which traces its history to the early days of the colony. He was the 1936 winner of the Blue Water Medal for "the finest feat of seamanship accomplished by an amateur yachtsman".