The
Four Oirat (
Dorben Oirad), also known as the
Alliance of the Four Oirat tribes or the
Oirat confederation (
Oirads;
Mongolian: Дөрвөн Ойрад; in the past, also
Eleuths), was the
confederation of the
Oirat tribes, which marked the rise of the Western Mongols in
Mongolian history.