One Piece Encyclopedia


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Japanese Name: ウラヌス
Romanized Name: Uranusu
English Name: Uranus
First Appearance: Chapter 650; Episode 570 (Mentioned)
Type: Ancient Weapon

Uranus is one of the three ancient weapons that existed during the Void Century along with Poseidon and Pluton.

It was first mentioned during Nico Robin's conversation with King Neptune, when she says there are three ancient weapons that bear the names of 'gods'.[1]

Abilities and PowersEdit

Like Pluton and Poseidon, Uranus is a dangerous weapon which can be used to rule the world or, in the wrong hands, destroy it. But as of yet, absolutely nothing else is known about it.


Uranus was a weapon known to have existed during the Void Century, Its fate after this point in history and what became of it currently remains unknown.


  • Like the other ancient weapons, it was named after a Greek deity. Uranus (Ουρανός) was the personification of sky, the father of all Titans, and the grandfather of the first six Olympian gods. "Ouranos" can literally translate to "Sky" or "Heaven" in English.


  1. One Piece Manga and Anime — Vol. 66 Chapter 650 and Episode 570, Robin (Neptune in the anime) speaks of Uranus along with the other two weapons' names.

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