Elva Guerra (born 2004) is an American actress best known for their role as Jackie in Reservation Dogs (2021–2023). Other major roles have included Sally Growing Thunder in Dark Winds. They also gave voice to the lead character Anna Horn in the thriller Sisters of the Lost Nation, a book on tape written by Nick Medina. Born in Oklahoma, Guerra is of Mexican and Ponca descent. They identify as two-spirit. They were cast for their first acting role at age 16.