On the balcony of Federal Hall on Wall Street in New York City, George Washington takes the oath of office to become the first elected President of the United States.

The first inauguration of George Washington as the first president of the United States was held on Tuesday, April 30, 1789 on the balcony of Federal Hall in New York City, New York. The inauguration was held nearly two months after the beginning of the first four-year term of George Washington as president. Chancellor of New York Robert Livingston administered the presidential oath of office. With this inauguration, the executive branch of the United States government officially began operations under the new frame of government established by the 1787 Constitution. The inauguration of John Adams as vice president was on April 21, 1789, when he assumed his duties as presiding officer of the United States Senate, this also remains the only scheduled inauguration to take place on a day that was neither January or March.

Federal Hall is a historic building at 26 Wall Street in the Financial District of Manhattan, New York City. The name refers to two structures on the site: a Federal style building completed in 1703, and the current Greek Revival–style building completed in 1842. While only the first building was officially called "Federal Hall", the current structure is operated by the National Park Service as a national memorial called the Federal Hall National Memorial.

The original building served as New York's first City Hall. It was the site where the colonial Stamp Act Congress met to draft its message to King George III claiming entitlement to the same rights as the residents of Britain and protesting "taxation without representation". After the American Revolution, in 1785, the building served as meeting place for the Congress of the Confederation, the nation's first central government under the Articles of Confederation. With the establishment of the United States federal government in 1789, it was renamed Federal Hall, as it hosted the 1st Congress and was the place where George Washington was sworn in as the nation’s first president. It was demolished in 1812.

The current structure, one of the best surviving examples of Greek Revival architecture in New York City, was built as the U.S. Custom House for the Port of New York. Later it served as a sub-Treasury building. The current national memorial commemorates the historic events that occurred at the previous structure. The building was designated a city landmark by the New York City Landmarks Preservation Commission in 1965 and was added to the National Register of Historic Places (NRHP) in 1966. It is also a contributing property to the Wall Street Historic District, a NRHP district created in 2007.