One Piece Lore: The Mystery Behind The D In Luffy’s Name

By Jason Collins | Updated

Monkey D. Luffy in One Piece

“I’m Monkey D. Luffy” became one of the most recognizable lines following the release of the One Piece’s live-action adaptation on Netflix less than a month ago. One-Piece became an instant hit among those who were previously unfamiliar with the narrative—and diehard fans as well—and perhaps one of the best things to land on streaming this year. However, besides introducing the newly found fandom to One Piece, the adaptation also left us with some unanswered questions, like what does the “D.” in Luffy’s name stand for? To start, the meaning behind this letter could be quite important.

It’s no secret that many characters in One Piece, including Luffy’s family members, as well as other notable figures, also have the same letter in their name.

Well, nobody actually knows—the mystery of Luffy’s name is one of the major conundrums in One Piece’s lore, which might be connected to the overarching narrative. It’s not uncommon for anime franchises with massive narratives, such as One Piece, Bleach, Naruto, or even Dragon Ball, to intentionally plant elements that would serve as mysteries that would later serve as plot devices.

Considering the vastness of One Piece lore, it’s rather easy to assume that the “D.” in Luffy’s name is indicative of such practice.

The “D.” might be connected to some ancient clan within the One Piece narrative.

But, as with most mysteries, the fandom follows the signs by the side of the road, and there are certain story elements that the fandom believes are tied to and might even explain the mystery behind the letter “D.” in Luffy’s name.

Vice Admiral Garp in One Piece

It’s no secret that many characters in One Piece, including Luffy’s family members, as well as other notable figures, also have the same letter in their name. This includes Gol D. Roger and Trafalgar D. Water Law, as well as Luffy’s grandfather, vice admiral Garp.

As per the overarching narrative, many of those with the “D.” initial in One Piece actually aren’t aware of its significance, and the franchise’s protagonist is apparently among them. Trafalgar D. Water Law was actually one of the few who knew the secret behind that, but he never disclosed the meaning, and several other characters also weighed in their own meaning, hinting that the “D.” might be connected to some ancient clan within One Piece narrative.

The “D.” initial in their names often play crucial roles in the world’s history and events, denoting their strong will, determination, and drive to challenge the world’s established order.

Luffy obviously inherited the initial in his name from his father, Monkey D. Dragon, as well as his grandfather, Garp. One Piece has previously mentioned this connection as the Will of D, a mysterious and recurring element that’s actually tied to certain characters having the initial “D.” in their names.

Apparently, the characters with the “D.” initial in their names often play crucial roles in the world’s history and events, denoting their strong will, determination, and drive to challenge the world’s established order.

But even the true meaning and origin of the Will of D remain shrouded in mystery as well. While there are various theories and interpretations of the mystery that exist amongst the fandom and characters in the story, it actually wasn’t fully explained by the creator of One Piece, Eiichiro Oda.

Considering that the mystery still wasn’t fully explained in the manga and the fact that the live adaptation assumed the same slow-burn approach, it’s highly unlikely for us to receive an adequate explanation in the foreseeable future.