Oliver Wolcott Jr., American lawyer and politician, 2nd United States Secretary of the Treasury, 24th Governor of Connecticut (died 1833)

Oliver Wolcott Jr. was an American politician and judge. He was the second United States Secretary of the Treasury, a judge of the United States Circuit Court for the Second Circuit, and the 24th Governor of Connecticut. His adult life began with working in Connecticut, followed by participating in the U.S. federal government in the Department of Treasury, before returning to Connecticut, where he spent his life before his death. Throughout his time in politics, Wolcott's political views shifted from Federalist, to Toleration, and finally Jacksonian. Oliver Wolcott Jr. is the son to Oliver Wolcott Sr., part of the Griswold-Wolcott family.

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.

The governor of Connecticut is the head of government of Connecticut, and the commander-in-chief of the state's military forces. The governor has a duty to enforce state laws, and the power to either approve or veto bills passed by the Connecticut General Assembly and to convene the legislature. Unusual among governors, the governor of Connecticut has no power to pardon. The governor of Connecticut is automatically a member of the state's Bonding Commission. He is an ex-officio member of the board of trustees of the University of Connecticut and Yale University.