Goku from Dragon Ball is often hailed as the gold standard of anime strength. He’s shattered planets, battled gods, and keeps pushing his limits with every arc. But what if we told you he’s not unbeatable? There are characters out there—across wildly different anime worlds—who could not only challenge Goku but potentially wipe the floor with him.
These aren’t your everyday warriors. We’re talking reality-benders, immortals, cosmic-level threats, and beings who exist beyond the rules of strength.
1. Nanika: The Wish-Granting Entity (Hunter x Hunter)

Nanika is not typically a fighter—she doesn't throw punches or blast energy beams. But what she can do is far more terrifying. With the ability to grant any wish, no matter how impossible, and a deadly consequence to follow, she operates on a reality-bending level.
If someone wished for Goku to be erased from existence, Nanika could likely make it happen—no battles needed. In the unpredictable universe of Dragon Ball, even Goku’s power can’t protect him from the laws of supernatural wishes and curses.
2. Anti-Spiral: The Cosmic Nihilist (Gurren Lagann)

The Anti-Spiral exists to crush evolution, stopping growth, ambition, and progress in their tracks like a cosmic handbrake. This entity has access to multiverse-level powers, including control over time, space, and probability itself. In its fight with Team Dai-Gurren, the Anti-Spiral showed an ability to create infinite possibilities and crush hope.
Against Goku, whose strength depends heavily on battle spirit and evolution, the Anti-Spiral could simply deny his growth. In a world where potential means power, especially in Dragon Ball, removing potential entirely ends the fight before it begins.
3. The Omni-King Zeno (Dragon Ball)

Zeno doesn’t just belong in the Dragon Ball universe—he rules it. With a mere gesture, he has the authority to wipe out entire realities without warning or resistance. That kind of absolute control leaves even Goku helpless.
While Goku may be Zeno’s favorite playmate, if Zeno decided to eliminate him, there would be no time to react. Not even Ultra Instinct would save Goku from a being who can destroy everything with a wave of his hand.
4. Saitama: The One-Punch Legend (One Punch Man)

Saitama's whole existence is a parody of overpowered heroes, which ironically makes him unbeatable. No matter the rival, one punch is all it takes—and he’s never even broken a sweat.
If Goku and Saitama were to fight, it wouldn’t be concerning power levels or transformations. Saitama’s power thrives on the ridiculous nature of his own world—so exaggerated, it could easily override even the most intense rules that define strength in the Dragon Ball universe. In a straight-up punch-out, Goku might finally meet his match.
5. Alucard: The Immortal Vampire (Hellsing)

Alucard is the very definition of an undead nightmare. With countless souls inside him, regeneration, and teleportation, he turns every battle into a psychological war.
Even if Goku destroyed Alucard a hundred times, he would just keep coming back. In the Dragon Ball world, power means everything. But how do you win a fight against someone who can’t die, doesn’t age, and feeds on chaos?
6. Beholder: The All-Seeing Creator (To Your Eternity)

The Beholder, cloaked in shadows from To Your Eternity, stands as the divine architect of his world. He is an unseen force responsible for shaping existence itself. He can observe all events simultaneously. The Man in Black can also manipulate reality according to his whims, with immortality that transcends conventional understanding.
Unlike the power-scaling battles common in Dragon Ball, the Beholder's abilities operate on a conceptual level. He could simply rewrite reality to make Goku powerless or nonexistent.
7. Rimuru: The Ultimate Slime (That Time I Got Reincarnated as a Slime)

Rimuru is not an average slime. With his evolution into a Demon Lord and his insane skill set—including absorbing enemies and stealing their powers—he’s a serious threat.
Even if Goku went full Ultra Instinct, Rimuru could analyze, adapt, and possibly absorb his abilities mid-fight. Add time manipulation and regeneration to the mix, and Rimuru becomes a wildcard the Dragon Ball fighters wouldn’t want to mess with.
8. Anos Voldigoad: The Tyrannical Demon King (The Misfit of Demon King Academy)

Anos doesn’t follow the rules—he redefines what’s possible every time he enters the battlefield. With absurd feats like killing enemies with heartbeats and resurrecting himself at will, he’s a walking contradiction to every power scale.
If he and Goku faced off, Anos might just will the fight in his favor. And considering Dragon Ball’s reliance on power growth, fighting someone who can’t be measured or limited might just be Goku’s endgame.
9. Ryuk: Death’s Spectator (Death Note)

Ryuk doesn't need to fight. As a Shinigami, he exists outside the realm of human combat and cannot be harmed by conventional means. Give him a face and a name, and that’s all it takes—the fate is sealed before even knowing it. With the Death Note in hand, writing “Goku” is enough to end the battle.
Sure, Goku has defied death many times, but that’s in the rules of his universe. Ryuk comes from a different set of rules entirely. No ki blast or transformation can stop a heart attack written into destiny.
10. Usagi Tsukino: The Cosmic Princess (Sailor Moon)

Usagi might seem like a bubbly schoolgirl, but when she taps into her full power, she becomes a goddess-level being with the ability to rewrite reality itself.
She’s purified entire timelines, reset the cosmos, and defeated multidimensional threats with love and light. Even Goku, with all his god forms, has never shown the ability to recreate the universe. That firmly places Usagi among the rare few who could genuinely rival the most powerful figure in the Dragon Ball saga.
Fundamentally, Goku is undoubtedly one of anime’s most powerful heroes, but that doesn’t make him invincible. With anime evolution, characters are doing so, and some of them push beyond anything Dragon Ball has imagined.