USS Sioux

USS Sioux may refer to:


 * USS Sioux (YT-19), an iron-hulled tugboat built as P. H. Wise at Philadelphia in 1892
 * USS Sioux (ID-1766), a cargo ship built in 1916 by the American Shipbuilding Co., Cleveland, Ohio
 * USS Sioux (AT-75), a Navajo-class fleet tug fleet tug in service from World War II through the Vietnam War
 * USNS Sioux (T-ATF-171), a Powhatan-class tugboat fleet ocean tug placed in service in 1981