George Washington (February 22, 1732 – December 14, 1799) was an American military officer, statesman, and Founding Father who served as the first president of the United States from 1789 to 1797. Appointed by the Second Continental Congress as commander of the Continental Army in June 1775, Washington led Patriot forces to victory in the American Revolutionary War and then served as president of the Constitutional Convention of 1787, which created and ratified the Constitution of the United States and the American federal government. Washington has been called the "Father of his Country" for his manifold leadership in the nation's founding.

Washington's first public office, from 1749 to 1750, was as surveyor of Culpeper County, Virginia. He subsequently received his first military training and was assigned command of the Virginia Regiment during the French and Indian War. He was later elected to the Virginia House of Burgesses and was named a delegate to the Continental Congress, where he was appointed Commanding General of the Continental Army and led American forces allied with France to a decisive victory over the British at the siege of Yorktown in 1781 during the Revolutionary War, paving the way for American independence. He resigned his commission in 1783 after the Treaty of Paris was signed.

Washington played an indispensable role in adopting and ratifying the Constitution of the United States, which replaced the Articles of Confederation in 1789 and remains the world's longest-standing written and codified national constitution to this day. He was then twice elected president by the Electoral College unanimously. As the first U.S. president, Washington implemented a strong, well-financed national government while remaining impartial in a fierce rivalry that emerged between cabinet members Thomas Jefferson and Alexander Hamilton. During the French Revolution, he proclaimed a policy of neutrality while sanctioning the Jay Treaty. He set enduring precedents for the office of president, including use of the title "Mr. President" and taking an Oath of Office with his hand on a Bible. His Farewell Address on September 19, 1796, is a preeminent statement on republicanism in which he writes about the importance of national unity and the dangers regionalism, partisanship and foreign influence pose to it.

Washington was a slave owner who had a complicated relationship with slavery. During his lifetime, he owned a cumulative total of over 577 slaves, who were forced to work on his farms and wherever he lived, including the President's House in Philadelphia. Yet, as president, he also signed laws passed by Congress that both protected and curtailed slavery. His will stated that his enslaved valet, William Lee, should be freed upon his death and that his remaining 123 slaves should be freed on his wife's death, though she freed them earlier during her lifetime.

Washington endeavored to assimilate Native Americans into the Anglo-American culture. He also waged military campaigns against Native American nations during the Revolutionary War and the Northwest Indian War. He was a member of the Anglican Church and the Freemasons and supported broad religious freedom as the Continental Army commanding general and nation's first president. Upon his death, Washington was eulogized by Henry Lee as "first in war, first in peace, and first in the hearts of his countrymen".

Washington has been memorialized by monuments, a federal holiday, various media depictions, geographical locations including the national capital, the State of Washington, stamps, and currency. Many scholars and ordinary Americans alike rank him among the greatest U.S. presidents. In 1976, Washington was posthumously promoted to the rank of General of the Armies, the highest rank in the U.S. Army.