| Type | water |
| Category | Special |
| Power | 110 |
| Accuracy | 80 |
| PP | 5 |
| Introduced | Generation 1 |
Hydro Pump deals damage with no additional effect.
When a Pokémon is holding Waterium Z and uses its Z-Power, Hydro Pump turns into Hydro Vortex and has base power 185.
| Gold Silver Crystal | A powerful water-type attack. |
| Ruby Sapphire Emerald | Blasts water at high power to strike the foe. |
| FireRed LeafGreen | A high volume of water is blasted at the foe under great pressure. |
| Diamond Pearl Platinum HeartGold SoulSilver | The foe is blasted by a huge volume of water launched under great pressure. |
| Black White Black 2 White 2 | The target is blasted by a huge volume of water launched under great pressure. |
| X Y O.Ruby A.Sapphire | The target is blasted by a huge volume of water launched under great pressure. |
| Sun Moon Ultra Sun Ultra Moon L.G. Pikachu L.G. Eevee | The target is blasted by a huge volume of water launched under great pressure. |
| Sword Shield B.Diamond S.Pearl | The target is blasted by a huge volume of water launched under great pressure. |
| English | Hydro Pump |
|---|---|
| Spanish | Hidrobomba |
| Italian | Idropompa |
| Japanese | ハイドロポンプ (Hydro Pomp) |
| German | Hydropumpe |
| French | Hydrocanon |