This race has no known canonical name. While the information presented in this article is canonical, the people/beings described lack an official name, thus the title is conjecture.
Arkhan's people are a race of Humans from the Milky Way galaxy led by Harold Maybourne, who is revered by his people as King Arkhan. The Goa'uld Ares once invaded their homeworld, but was defeated thanks to SG-1, thus adding to His Majesty's luster and fame. (SG1: "It's Good to Be King")