| Barrier | Details | Level Up | TM | Move Tutor | Egg Move |
| Gen IX Dex | Gen VIII Dex | Gen VII Dex | Gen VI Dex | Gen V Dex |
| Gen IV Dex | Gen III Dex | Gen II Dex | Gen I Dex |
| Attack Name | Battle Type | Contest Type |
| Barrier |  |  |
| Power Points | Base Power | Accuracy |
| 30 | 0 | 0 |
| Battle Effect: Creates a barrier that sharply raises DEFENSE. |
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| Secondary Effect: Raises user's DEFENSE two stages. | Effect Rate: -- % |
|
| TM # | Appeal Points | Jam Points |
| None | 
| |
| Contest Effect: Can avoid being startled by others. |
||
| BrightPowder | King's Rock | Physical Contact |
| No | No | No |
| Battle Palace Style | Battle Arena | Pokémon Hit in Battle |
| Defense | +0 | User |
| Picture Example of Barrier | ||
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Pokémon That Learn Barrier By Level Up in Ruby/Sapphire/Emerald/Colosseum/XD:
| No. | Pic | Name | Type 1 | Type 2 |
| #072 |  | Tentacool |  |  |
| #073 |  | Tentacruel | | |
| #122 |  | Mr. Mime |  |  |
| #150 |  | Mewtwo | | |
Pokémon That Learn Barrier By Level Up in Fire Red/Leaf Green:
| No. | Pic | Name | Type 1 | Type 2 |
| #072 | | Tentacool | | |
| #073 | | Tentacruel | | |
| #122 | | Mr. Mime | | |
| #150 | | Mewtwo | | |
Pokémon That Learn Barrier By Breeding:
| No. | Pic | Name | Type 1 | Type 2 |
| #063 |  | Abra | | |
| #064 |  | Kadabra | | |
| #065 |  | Alakazam | | |
| #090 |  | Shellder | | |
| #091 |  | Cloyster | |  |
| #096 |  | Drowzee | | |
| #097 |  | Hypno | | |
| #125 |  | Electabuzz |  | |
| #126 |  | Magmar |  | |
| #222 |  | Corsola | |  |
| #239 |  | Elekid | | |
| #240 |  | Magby | | |
| #345 |  | Lileep | |  |
| #346 |  | Cradily | | |
| #366 |  | Clamperl | | |
| #367 |  | Huntail | | |
| #368 |  | Gorebyss | | |
Pokémon That Learn Barrier By Purifying or A Special Way:
| No. | Pic | Name | Type 1 | Type 2 |