The Treaty of Washington may refer to:
- Treaty of Washington (1805), between the U.S. and the Creek National Council (Muscogee (Creek))
- Treaty of Washington (1824), two Indian nation treaties, between the U.S. and the Sac (Sauk) and Meskwaki (Fox) (7 Stat. 229), and the Iowa (7 Stat. 231)
- Treaty of Washington (1826), between the U.S. and the Creek National Council led by Opothleyahola
- Treaty of Washington (1831), between the U.S. and the Menominee Indian Tribe.
- Treaty of Washington (1836), a U.S.–Native American (Ottawa and Chippewa) treaty
- Webster-Ashburton Treaty of 1842. It settled the border dispute between Canada and the Eastern States, such as Maine and Vermont. It helped to end the slave trade
- The Oregon Treaty of 1846, which established the US-British frontier west of the Rocky Mountains (today's US-Canada boundary)
- Treaty of Washington (1855), between the U.S. and Ojibwa
- Treaty of Washington (1858), between the U.S. and Dakota Sioux
- Treaty of Washington (1866), between the U.S. and the Potawatomi
- Treaty of Washington (1867), between the U.S. and the Potawatomi
- The Treaty of Washington (1871), a general agreement between the United States and the British Empire
- The International Meridian Conference of 1884 in Washington DC, establishing the Greenwich Meridian, the world time zone system and the universal day as international standards
- The Treaty of Washington (1900) between Spain and the United States
- The Washington Naval Treaty of 1922 that limited naval armaments
- The Treaty of Washington (1944), between the United States and Mexico on the sharing of transboundary rivers
- The North Atlantic Treaty of 1949 that created NATO
- The Treaty of Washington (1989), Treaty on Intellectual Property in respect of Integrated Circuits
- The CITES
Famous quotes containing the words washington and/or treaty:
“There are always those who are willing to surrender local self-government and turn over their affairs to some national authority in exchange for a payment of money out of the Federal Treasury. Whenever they find some abuse needs correction in their neighborhood, instead of applying the remedy themselves they seek to have a tribunal sent on from Washington to discharge their duties for them, regardless of the fact that in accepting such supervision they are bartering away their freedom.”
—Calvin Coolidge (18721933)
“No treaty is ever an impediment to a cheat.”
—Sophocles (497406/5 B.C.)