Eterna City is a city in the region of Sinnoh; it is an older city, showing the signs of history.

There is a rather large statue of an ancient Pokémon on the east side of town. The statue was once the main center of festivals in the town, although signs of the town's culture and rituals have started to slip away.

The Eterna Gym is one of the Gyms located in the Sinnoh region, and run by the Gym Leader Gardenia, who specializes in Grass-type Pokémon. Defeating Gardenia yields the Forest Badge.