Summary
The world ofJujutsu Kaisenhas seen the rise and fall of some of the most incredible sorcerers who utilize their powers for both good and bad. Those who utilize their sorcery for evil and with malevolent intentions are specifically known as curse users.
Over the years, fans have seen some of the most incredible curse users in JJK and while some of them are simply average, others have hit levels that are quite impossible to match. In fact, the strongest characters in JJK actually belong to the group of curse users.

8Junpei Yoshino
Became A Curse User After The Ordeals He Faced
Junpei Is a character that fans were introduced to quite early into the series. He was able to see curses and, later on, manifest a cursed technique of his own. Junpei was an innocent child at first, however, seeing the injustice in the world around him, he decided to use his powers to take revenge on those who wronged him.
This made him a cursed user and he used his jellyfish shikigami to punish multiple people. Unfortunately, before he could be mended and brought back to the right side, he ended up being killed, thanks to Mahito.

7Haruta
A Powerful Enemy Working For Kenjaku
Haruta was a powerful curse user whom fans saw quite a lot of in the story. He was a swordsman who also possessed one of the most interesting cursed abilities that granted him luck.
Haruta was not known to be all that powerful, however, as a curse user, he managed to create problems for multiple sorcerers, including the likes of Nobara.

6Noritoshi Kamo
The Blot On The Kamo Clan’s Name
In the history of all sorcerers, none can be considered to be as evil as Noritoshi Kamo. This member of the Kamo Family was so evil that he’s considered to be the most heinous sorcerer ever.
In reality, this was down to Kenjaku, who had taken over his body using the brain hopping technique. Nonetheless, Noritoshi Kamo himself ended up becoming a curse user as well.

5Uraume
A 1000 Year Old Curse User
Uraume is a subordinate of Sukuna who has also worked with Kenjaku on multiple occasions.She possesses the ability to utilize Ice Formationand this technique is quite straightforward, as the name suggests.
Her cursed technique allows her to utilize cryokinetic powers, and, at the same time, she is also an amazing user of reverse cursed technique. When it comes to curse users, she might not be the strongest, however, she certainly is one of the very best.

4Kenjaku
The Mastermind Curse User
Kenjaku himself is an incredible villainthat fans have seen quite a lot of inJJK. He has existed for around a thousand years in the series now, and, using the brain hopping technique, has jumped from one body to another controlling them and using them to fulfill his deepest and most evil desires.
He’s certainly one of the most heinous curse users ever, even though he’s not the strongest.

3Suguru Geto
A Sorcerer-Turned Curse User
Suguru Geto was one of the most talented Jujutsu Sorcerersat one point. However, after losing his mind, he decided to eliminate all non-sorcerers and went down the wrong path. This made Geto a Curse User, and, given that he was already worthy of being considered a special grade, fans can imagine how strong he was.
By the time of JJK0, which is where he died, Geto had already sharpened his skills to a point where he could pull off something as elaborate as the Night Parade Of 100 Demons.

2Toji Fushiguro
The Sorcerer Killer
Toji Fushiguro, also known as the Sorcerer Killer, was certainly one of the strongest characters in the entirety ofJJK. Due to not having any cursed energy and, by extension, not having any access to jujutsu sorcery, he is considered to be a non-curse user, but he still falls under the class of Curse Users.
Simply put, these are characters that do not possess or utilize curded energy, yet use whatever ability they have for evil intentions. Toji was a major villain at one point in the story, and that alone makes him one of the strongest curse users in the series, worthy of rivaling the very best.

1Ryomen Sukuna
The Strongest Curse User in JJK
Undoubtedly, the King of Curses, Ryomen Sukunais the strongest curse user in the entire story. Known as the strongest sorcerer in history, Sukuna is in a league of his own, matched only by the likes of Gojo. Sukuna has managed to take his skill to the utmost peak, and he can fight and defeat nearly anyone in the story with rather ease.
So far, other than Gojo, no sorcerer has managed to hit the same level as him and that speaks for itself about the level that he operates on as a curse user. This is especially true when considering the sheer amount of power his cursed technique possesses and his ability to heal from anything and everything. The level at which he uses his cursed technique is far superior to anyone else in the world of JJK and it is by utilizing these powers that he was even able to best Gojo in battle, although it could have gone either way.
