New Athos is a planet in the Pegasus Galaxy and is the third homeworld of the Athosians after Athos and Lantea.
The Athosians were moved there after some of the Lanteans returned to reclaim Atlantis. However after the return of the Atlantis expedition, the Athosians chose to stay in the planet, now named New Athos. They managed to have made a permanent settlement there. However, a year later the Wraith Michael Kenmore arrived and kidnapped all the Athosians there and the planet was temporarily overrun by the Bolo Kai. (SGA: "The Return, Part 1", "Missing")