《永恒的阿卡迪亚》（日语：エターナルアルカディア，Eternal Arcadia，英语：Skies of Arcadia，中国大陆和香港译作「永恒的阿卡迪亚」）是日本世嘉公司在2000年发行的角色扮演游戏系列。游戏的开发商为Overworks公司（即原世嘉AM7研）。2002年，游戏以《永恒的阿卡迪亚传说》（日语：エターナルアルカディア レジェンド，英语：Skies of Arcadia Legends）之名移植至Gamecube。本来游戏亦打算移殖到Playstation 2和Windows上，但刚在Gamecube版推出之前计划就取消了。

Skies of Arcadia, released in Japan as Eternal Arcadia(エターナルアルカディア), is a role-playing video game developed by Overworks for the Dreamcast and published by Sega in 2000. It was ported to the GameCube in 2002 as Skies of Arcadia Legends, featuring minor enhancements. Legends was in development for the PlayStation 2 and Microsoft Windows, but both ports were canceled shortly before the GameCube version's release. The game's story focuses around Vyse, a young air pirate in a Jules Verne-inspired fantasy world, and his friends as they attempt to stop the Valuan Empire from reviving ancient weapons with the potential to destroy the world.