The Yustaga were a Timucua people of what is now northwestern Florida during the 16th and 17th centuries. The westernmost Timucua group, they lived between the Aucilla and Suwanee Rivers in the Florida Panhandle, just east of the Apalachee people. A dominant force in regional tribal politics, they may have been organized as a loose regional chiefdom consisting of up to eight smaller local chiefdoms.