One Piece: 16 Characters Who Could Kill An Admiral

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From the beginning of the One Piece series, the Admirals quickly established themselves as incredibly powerful. They were presented as the Navy’s strongest fighters – and therefore, the World Government’s – and have remained at the very top of the power rankings ever since.

For a long time, many One Piece fans believed only the strongest characters had a chance against the Admirals, and their battle at Marineford seemed to prove that. This article will look at the most powerful characters who could defeat these formidable Navy leaders.

Luffy Was Shown To Fight Kizaru And Saturn At Once

Egghead’s Ultimate Battle

Luffy’s power has increased more rapidly than any other character in the series. His Gear 5 transformation has made him incredibly strong, as seen during the Egghead arc where he fought both Kizaru and Saturn simultaneously. While he didn’t inflict significant damage on Saturn and Kizaru may not have been fighting at full strength, a full-force battle would likely result in Gear 5 Luffy defeating most of the Admirals.

Loki’s Haki And Devil Fruit Are Beyond Everyone Else

The Accursed Prince

Loki is arguably one of the most powerful characters introduced so far. He demonstrated a mastery of Advanced Conqueror’s Haki – even coating his hammer, Ragnir – to defeat Harald, a technique Luffy hasn’t yet fully grasped, and did so without any training. Beyond this, Loki possesses what appears to be the strongest Devil Fruit ability seen in One Piece to date, putting him on a completely different level than the Admirals.

Monkey D. Dragon Is Probably Insanely Powerful

The World’s Worst Criminal

It’s understandable why some people question including Dragon on this list, as he hasn’t had many opportunities to demonstrate his strength in the story so far. However, many fans think he’ll become one of the most powerful characters in One Piece when he finally fights, considering his rare appearances, apparent control over the weather, and his lineage from the famous Monkey D. family.

Kaido’s Strength Is Too Great For Any Admiral To Deal With

The World’s Strongest Creature

Throughout the Wano arc, Kaido proved to be Luffy’s most challenging opponent yet, a title he still holds even after the recent events at Egghead. He truly lived up to his reputation as the ‘World’s Strongest Creature,’ showcasing incredible skill with all types of Haki and a remarkably powerful Devil Fruit. He single-handedly fought off the combined forces of the heroes during the Onigashima Raid, all after enduring a grueling three-day battle with Big Mom. Many fans speculate that, had he not been so weakened, he could have defeated Luffy even after Luffy awakened Gear 5.

Shanks Has Already Shown His Superiority Over An Admiral

Showed His Haki Mastery

The series One Piece first suggested Shanks was exceptionally strong after the Marineford arc, when he blocked a powerful attack from Akainu with just his Armament Haki. But his true power was really showcased at the end of the Wano arc. He arrived on the island and effortlessly stopped a Navy Admiral, Ryokugyu, in his tracks using Conqueror’s Haki from a great distance, proving he’s significantly more powerful than Ryokugyu and likely most other Admirals.

Mihawk’s Insane Strength Is Said To Equal Shanks Himself

The World’s Strongest Swordsman

In the world of pirates and incredibly strong fighters, being known as the World’s Strongest Swordsman means you’re exceptionally powerful. Mihawk holds this title and is unique in the current story for possessing a Black Blade, a result of years spent strengthening it with his immense skill and willpower. Because he’s considered the only person on equal footing with the powerful Shanks, many believe Mihawk could defeat even an Admiral.

Whitebeard Has Already Shown How Much Stronger He Is

The World’s Strongest Man

Whitebeard truly lived up to his reputation as the World’s Strongest Man. He possessed an incredibly powerful Devil Fruit, capable of causing worldwide destruction, and was highly skilled in all forms of Haki. Even weakened and ill during the battle at Marineford, he was able to overpower the strongest Admiral, Akainu, using only his Devil Fruit abilities.

Gol D. Roger Was The Pirate King For A Reason

The Greatest Pirate

Becoming the ‘Pirate King’ requires immense strength, and Roger proved this by being the first—and so far only—captain to find the legendary treasure, the One Piece. He didn’t rely on Devil Fruit powers; instead, he became incredibly strong through complete mastery of all three types of Haki. In fact, he was known to consistently defeat the Holy Knights, an elite group even more powerful than the Admirals.

Rocks D. Xebec Was The Captain Of The Strongest Crew Ever

The Greatest Pirate

Leading what many consider the most powerful pirate crew ever requires incredible fighting ability. Rocks D. Xebec, a legendary rival of Gol D. Roger, was renowned for his immense strength, which came solely from mastering Haki. This made him one of the most feared and dangerous pirates in history. He was so powerful that, early in his career, he managed to kill a Marine Admiral after infiltrating the heavily guarded Marijoa – something no one else has ever accomplished.

King Harald Was The Most Powerful Giant Of All Time

Rocks’ Equal

King Harald ruled Elbaf during the age of pirates like Roger and Rocks. As a descendant of the Ancient Giants, he was naturally incredibly strong and physically imposing. But Harald’s true power came from his mastery of Haki – he was one of the most skilled Haki users ever seen. He was a match for Rocks in every way, and their battles often ended in a draw. These clashes resulted in the most powerful display of Conqueror’s Haki ever recorded.

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2026-02-15 13:35