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Who is the strongest conqueror Haki user?

Conqueror’s Haki, also known as the Haki of the Color of the Supreme King, is one of the rarest and most powerful types of Haki in the One Piece world. Only a select few individuals have been shown to possess this ability, which allows the user to exert their willpower over others to render them unconscious. Determining who the strongest conqueror’s Haki user is in the One Piece universe requires analyzing the extent of each known user’s mastery over this powerful Haki.

What is conqueror’s Haki?

Conqueror’s Haki is a rare form of Haki that cannot be attained through training. You are born with it or not at all. Only one in several million people have this type of Haki. Those with conqueror’s Haki have the ability to exert their willpower over others. By concentrating hard enough, the user can intimidate and even render weak-willed individuals around them unconscious. This allows them to exert dominance over others and establish their position as a leader or ruler.

Some key things to know about conqueror’s Haki:

– Cannot be achieved through training, you must be born with it
– Only one in several million people possess this ability
– Allows the user to intimidate or knock out weak-willed individuals
– Exerts the user’s willpower and dominance over others
– Associated with the qualities of a king or leader

Having this power is a major indicator that someone has the qualities and disposition of a king, hence the name.

Known Users of Conqueror’s Haki

There are several notable users of conqueror’s Haki that have been introduced in the One Piece story so far:

Monkey D. Luffy

The main protagonist of One Piece, Luffy first displayed the use of conqueror’s Haki during the war at Marineford when he knocked out a group of weak-willed marine soldiers. Since then, he has improved his mastery and can selectively knock out targets without affecting allies. He can also imbue his attacks with conqueror’s Haki to deal devastating damage.

Donquixote Doflamingo

The former monarch of Dressrosa, Doflamingo had immense mastery of conqueror’s Haki and was able to knock out almost the entire population of Dressrosa during his false resignation. His ability allowed him to dominate as king and puppeteer the citizens to his will.

Charlotte Katakuri

One of Big Mom’s Three Sweet Commanders, Katakuri demonstrated skilled use of conqueror’s Haki during his battle with Luffy. He could knock out lesser members of his crew without affecting Luffy, displaying fine control.

Silvers Rayleigh

The former first mate of Gol D. Roger’s crew, Rayleigh showcased his conqueror’s Haki by rendering an entire hall of auction participants unconscious. As an experienced veteran and Roger’s right-hand man, his Haki mastery exceeds most others.

Portgas D. Ace

Luffy’s older brother and Second Division Commander of the Whitebeard Pirates, Ace possessed conqueror’s Haki but relied more on his Logia devil fruit powers in battle. He was still able to knock out Whitebeard’s crew members with bursts of Haki.


A veteran pirate from the old era who fought against Roger and Garp, Chinjao displayed mastery of conqueror’s Haki that allowed him to split apart ice continents with his head. His advanced age may limit his present Haki capabilities compared to his prime.

Boa Hancock

The only female known conqueror’s Haki user, Hancock can knock out large groups by turning her targets to stone with her Mero Mero devil fruit and shattering them with bursts of Haki. As a member of the Seven Warlords, she is quite skilled.

Don Chinjao

The grandfather of Chinjao, former leader of the Chinjao Family, Don Chinjao used his conqueror’s Haki to help split a continent of ice alongside his grandson. His mastery was likely immense in his heyday.


The strongest creature in the world, Kaido has demonstrated powerful conqueror’s Haki that blankets entire battlefields. He can imbue his kanabo club with it to knock out several enemies at once with destructive force. As one of the Four Emperors, his Haki mastery is immense.

Big Mom

Another one of the Four Emperors, Big Mom can unleash bursts of conqueror’s Haki that knock out large numbers with ease. She was even able to damage her own son’s body internally with her Haki during a tantrum-induced rampage.


A member of Gol D. Roger’s crew, Shanks mastered his Haki to the point where he can exert his willpower without a visible burst of Haki. His mastery allows him to influence events, opponents, and surroundings just with his overwhelming presence.

Edward Newgate (Whitebeard)

Known as the Strongest Man in the World, Whitebeard was likely one of the most powerful conqueror Haki users in the era before his death. He could knock out most of his crew and an entire battlefield of Marineford without exerting himself fully.

Ranking the Strongest Conqueror Haki Users

Now that we’ve summarized the key known conqueror Haki users in One Piece, we can attempt to rank their mastery and potency to determine who currently holds the title of strongest. Here is a ranking assessing their capabilities:

Rank User Haki Mastery Level
1 Kaido Extremely High
2 Big Mom Extremely High
3 Shanks Extremely High
4 Luffy Very High
5 Don Chinjao Very High
6 Rayleigh Very High
7 Doflamingo High
8 Hancock High
9 Katakuri High
10 Chinjao Above Average
11 Ace Above Average
12 Whitebeard Extremely High (in prime)

Based on their feats and portrayals, the top contenders for strongest conqueror Haki user are the Four Emperors (Shanks, Kaido, Big Mom) and Luffy.

Kaido likely takes the top spot currently for his title as Strongest Creature, immense Haki mastery that coats entire battlefields, and being nearly unbeatable in one-on-one combat.

Big Mom is comparable to Kaido in power and her Elbaph-enhanced conqueror Haki places her at number two.

Shanks demonstrates the most subtle but advanced conqueror Haki mastery through his force of presence alone, though we haven’t seen him go all-out yet.

Luffy shows immense potential and has improved at an incredible pace, but still lacks the refinement and experience to match the Four Emperors in Haki mastery.

Veteran users like Rayleigh and Don Chinjao should not be underestimated either thanks to their advanced ages and honed mastery.

It’s also worth noting Whitebeard would likely be ranked near the top if he was still in his prime health. Age severely affected his stamina and Haki prowess by the Marineford arc.


In summary, Kaido currently appears to hold the title of strongest conqueror Haki user in the One Piece world when considering his fearsome reputation, unmatched durability and endurance, mastery over conqueror’s Haki emission and imbuement, and lack of injuries sustained so far.

However, Luffy’s growth rate shows immense promise that he may eventually surpass even the Four Emperors in Haki ability. Other veterans like Shanks and Big Mom should not be discounted either, and there still may be undisclosed conqueror Haki users yet to showcase their true mastery. Nonetheless, Kaido has staked a convincing claim as the king of conquerors through his feats so far.