Kiowa Tribe v. Manufacturing Technologies, 523 U.S. 751 (1998), was a case in which the Supreme Court of the United States held that an Indian Nation were entitled to sovereign immunity from contract lawsuits, whether made on or off reservation, or involving governmental or commercial activities.

[1] The Kiowa Tribe of Oklahoma entered into an agreement in 1990 to pay $285,000 for stock.

The tribe defaulted and Manufacturing Technologies sued in state court.

The trial court denied the tribe's motion for summary judgment based on tribal sovereignty.

The Oklahoma Supreme Court denied the tribe's request of review.