This place has only been mentioned in the related series dubbed the Arrowverse.
The Flash[]
Season 2[]
- "The Darkness and the Light": It was first mentioned by an Earth-2 character, Hunter Zolomon admitted to loving Atlantis, especially as one of his best friends originated from there.
- "Welcome to Earth-2": In 2016, Barry Allen (Earth-2) gifted his parents plane tickets to Atlantis for their anniversary.
- "Escape from Earth-2": After Earth-2 Barry and Earth-2 Iris West-Allen helped Team Flash free Jesse Wells and Earth-1 Barry from Zoom, they temporarily relocated to Atlantis to stay with some family members to escape from the evil speedster.
Season 6[]
- "Marathon": At some point, Harrison Nash Wells learned an "Atlantean shoulder-check"; he tried to use it to exit a closet where he was locked inside.
- "Death of the Speed Force": At some point while cataloging Earth-Prime post-Crisis, Cisco Ramon visited Atlantis.
- "Pay the Piper": While in Atlantis, Cisco saw a component that could be used to create a perpetual motion machine.
Season 7[]
- "The Speed of Thought": The component that Cisco got from Atlantis was worthless and a dud, thus unusable towards making a portal to the Mirrorverse.