Tribes that oppose Chief Illiniwek or Other Native Mascots:
- Cherokee Nation of Oklahoma - (Five Civilized Tribes Resolution)
- Chickasaw Nation - (Five Civilized Tribes Resolution)
- Muscogee (Creek) Nation - (Five Civilized Tribes Resolution)
- Choctaw Nation - (Five Civilized Tribes Resolution)
- Seminole Nation of Oklahoma - (Five Civilized Tribes Resolution)
- Peoria Tribe of Oklahoma - (Position Statement)
- Oglala Sioux Tribe - Resolution (or here)
- Shoshone-Bannock Tribes - (Tribes' 2019 Position Paper)
- Shawnee Tribe - (July, 2020 Press Release)
- Seneca Nation - (August, 2020 News Story)
- Oneida Indian Nation - (Dec., 2020 Press Release about Cleveland Indians name change)
National Organizations that oppose Mascots:
- American Psychological Association - (Resolution and Research)
- National Congress of American Indians - (Resolutions from November 2005, October 2013, June 2014, October 2014, October 2018)
- U.S. Commission on Civil Rights
- National Education Association
- Indian Education Association
- National Collegiate Athletic Association - (NCAA Champion Magazine Story, Winter, 2016)
- Little League International - (NCAI Press Release)
Other Documents: