Tonto is a fictional character and was the companion of the Lone Ranger, a popular American Western character created by George W. Trendle and Fran Striker. Tonto has appeared in radio and television series and other presentations of the characters' adventures righting wrongs in 19th century western America.

Tonto made his first appearance on the 11th episode of the radio show The Lone Ranger.

The radio series identified Tonto as a chief's son in the Potawatomi nation. The Potawatomi originated in the Great Lakes region but in the 19th century, most had been relocated to the Southwestern states. Their regalia is different from that worn by Tonto. The choice to make Tonto a Potawatomi seems to come from station owner George Trendle's youth in Mullett Lake, Michigan. Located in the northern part of the Midwest, Michigan is the traditional territory of the Potawatomi, and many local institutions use Potawatomi names.

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