Presidents Day (or President's Day), is a commonly used, but erroneous, name for the federal holiday officially designated as Washington's Birthday. It is also the official name of a concurrent state holiday celebrated on the same day in a small number of states. It is celebrated on the third Monday of February.

As the official title of the federal holiday, Washington's Birthday was originally implemented by the federal government of the United States in 1880 in the District of Columbia (20 Stat. 277) and expanded in 1885 to include all federal offices (23 Stat. 516). As the first federal holiday to honor an American citizen, the holiday was celebrated on Washington's actual birthday, February 22. On January 1, 1971 the federal holiday was shifted to the third Monday in February by the Uniform Monday Holiday Act. A draft of the Uniform Holidays Bill of 1968 would have renamed the holiday to Presidents' Day to honor both Washington and Lincoln, but this proposal failed in committee and the bill as voted on and signed into law on June 28, 1968 simply moved Washington's Birthday.