易洛魁联盟(Iroquois Confederacy)，亦作League of the Iroquois。
纽约州五个（後来六个）印第安人部落组成的联盟。它在17～18世纪英国和法国争夺北美的战争中具有重要作用。这五个易洛魁部落是摩和克人、奥奈达人、奥农达加人、卡尤加人和塞尼卡人。图斯卡罗拉人於1772年加入。据传，1570～1600年由出生於休伦的迪卡纳维达成立。实现奥农达加人海华沙的早期观念。最初联盟勉强地阻止了休伦人和马希坎人的进攻。到1628年摩和克人打败马希坎人建立由他们自己支配的部落地区。1648～1650年易洛魁人摧毁休伦人後，他们被休伦人的法国联盟攻击。美国革命期间，奥奈达人和图斯卡罗拉人支持美国，由布兰特率领的其他部落则为英国人战斗。1779年效忠派易洛魁人在纽约州埃尔迈拉附近被打败，联盟走向消亡。该联盟以联合抗拒入侵的愿望为基础，以部落和五十名酋长组成的公共会议为形式，每部落一票，以全体一致为准则。
English version：
Iroquois Confederacy
Confederation of five (later six) Indian tribes across upper New York that in the 17th-18th century played a strategic role in the struggle between the French and British for supremacy in North America. The five original nations were the Mohawk, Oneida, Onondaga, Cayuga, and Seneca; the Tuscarora joined in 1722. According to tradition, the confederacy was founded between 1570 and 1600 by Dekanawidah, born a Huron, carrying out the earlier ideas of Hiawatha, an Onondaga. Cemented mainly by their desire to stand together against invasion, the tribes united in a common council composed of 50 sachems; each tribe had one vote, and unanimity was the rule. At first the confederacy barely withstood attacks from the Huron and Mahican, but by 1628 the Mohawk had defeated the Mahican and established themselves as region's dominant tribe. When the Iroquois destroyed the Huron in 1648-50, they were attacked by the Huron's French allies. During the American Revolution, the Oneida and Tuscarora sided with the Americans while the rest of the league, led by Joseph Brant, fought for the British. The Loyalist Iroquois were defeated in 1779 near Elmira, N.Y., and the confederacy came to an end.