Lewis Thompson Preston (August 5, 1926 – May 4, 1995) was an American banker.

[3] He served in the US Marines during World War II in the Pacific and as an aide to Navy Secretary James Forrestal who was a friend of his mother.

[3] He was chosen for the United States men's national ice hockey team, but never ended up competing in the Olympics.

[2] In 1980 Preston was appointed CEO of J.P. Morgan & Co.[2] He helped the company weather the storm of Silver Thursday in 1980 which had a wide negative impact on the banking industry.

[2] In 1984 he assisted in the bailout of Continental Illinois when it was seized by the Federal Deposit Insurance Corporation.