Alexander Buel (Sandy) Trowbridge III (December 12, 1929 – April 27, 2006) was an American politician and businessman.

He was the United States Secretary of Commerce from June 14, 1967, to March 1, 1968, in the administration of President Lyndon B. Johnson.

[citation needed] His mother, the former Julie Chamberlain, who was the executive director of the Woodrow Wilson Foundation from 1942 to 1961.

from the Woodrow Wilson School of Public and International Affairs at Princeton University in 1951 after completing a senior thesis titled "The Spanish Loan.

He resigned to return to business, serving first as the President of the American Management Association, in May 1968,[5] before the joining Allied Chemical as a Vice-Chairman of the Morristown, New Jersey–based parent company and the Chairman of their Canadian subsidiary, Allied Chemical Canada Ltd. of Pointe-Claire (QC).