Albert Gallatin, Swiss-American ethnologist, linguist, and politician, 4th United States Secretary of the Treasury (died 1849)

Abraham Alfonse Albert Gallatin was a Genevan-American politician, diplomat, ethnologist, and linguist. Often described as "America's Swiss Founding Father", he was a leading figure in the early years of the United States, helping shape the new republic's financial system and foreign policy. Gallatin was a prominent member of the Democratic-Republican Party, represented Pennsylvania in both chambers of Congress, and held several influential roles across four presidencies, most notably as the longest serving U.S. secretary of the treasury. He is also known for his contributions to academia, namely as the founder of New York University and cofounder of the American Ethnological Society.

The United States secretary of the treasury is the head of the United States Department of the Treasury, and is the chief financial officer of the federal government of the United States. The secretary of the treasury serves as the principal advisor to the president of the United States on all matters pertaining to economic and fiscal policy. The secretary is, by custom, a member of the president's cabinet and, by law, a member of the National Security Council, and fifth in the U.S. presidential line of succession.

January 29 is the 29th day of the year in the Gregorian calendar; 336 days remain until the end of the year.