Tosawi (alternatively Toshaway, Toshua, or Silver Knife) was a Penateka Comanche chief. He was deemed "cooperative" by William Babcock Hazen. He is best known for an alleged exchange with Philip Sheridan where Sheridan purportedly stated "The only good Indians I ever saw were dead", which was sometimes rephrased as "the only good Indian is a dead Indian." Sheridan denied ever making either statement.
- Pratt, Richard Henry (2004). Utley, Robert Marshall, ed. Battlefield and Classroom: Four Decades with the American Indian, 1867-1904 By Richard Henry. University of Oklahoma Press. p. 32. ISBN 978-0-8061-3603-5. Retrieved December 29, 2009.
- Schedler, George (1998). Racist Symbols and Reparations by George Schedler. Rowman & Littlefield. p. 60. ISBN 978-0-8476-8676-6. Retrieved December 29, 2009.