Alfred Lee Loomis Jr. (April 15, 1913 – September 7, 1994) was an American investment banker and Olympic sailing champion who won the Bermuda race twice.

In 1977, he was manager of the Independence-Courageous syndicate, the yachting team that successfully defended the America's Cup that year.

He competed at the 1948 Summer Olympics in London, where he won a gold medal in the 6 metre class with the boat Uanoria, together with Herman Whiton, James Smith, Michael Mooney, who later married his daughter, Nancy, and James Weekes.

He was married to the late Virginia Davis and had three daughters, Candace, Nancy, Sabre and a son, Alfred, III.

This article about a yacht racing Olympic medalist of the United States is a stub.