| Type | water |
| Category | Special |
| Power | 35 |
| Accuracy | 85 |
| PP | 15 |
| Introduced | Generation 2 |
Whirlpool inflicts damage on the first turn then traps the opponent in the vortex, causing them to lose 1⁄8 of their maximum HP after each turn, for 4-5 turns.
If the user holds a Grip Claw, the after-effects last for 7 turns. If a Binding Band is held, the damage is 1⁄6 of the target's maximum HP.
If the opponent is hidden underwater from using Dive, Whirlpool will hit with double power.
When a Pokémon is holding Waterium Z and uses its Z-Power, Whirlpool turns into Hydro Vortex and has base power 100.
Whirlpool allows you to cross swirling maelstroms in your path. Only Generation 2 and Generation 4 have whirlpools that can be passed.
| Gold Silver Crystal | Traps the foe for 2-5 turns. |
| Ruby Sapphire Emerald | Traps and hurts the foe in a whirlpool for 2 to 5 turns. |
| FireRed LeafGreen | The foe is trapped in a fast, vicious whirlpool for two to five turns. |
| Diamond Pearl Platinum | The user traps the foe inside a fast, vicious whirlpool that lasts for two to five turns. |
| HeartGold SoulSilver | Traps the foe inside a whirlpool that lasts for two to five turns. The user can pass through whirlpools. |
| Black White Black 2 White 2 | Traps foes in a violent swirling whirlpool for four to five turns. |
| X Y O.Ruby A.Sapphire | The user traps the target in a violent swirling whirlpool for four to five turns. |
| Sun Moon Ultra Sun Ultra Moon | The user traps the target in a violent swirling whirlpool for four to five turns. |
| Sword Shield B.Diamond S.Pearl | The user traps the target in a violent swirling whirlpool for four to five turns. |
| English | Whirlpool |
|---|---|
| Spanish | Torbellino |
| Italian | Mulinello |
| Japanese | うずしお (Uzushio) |
| German | Whirlpool |
| French | Siphon |