|Rock Snake Pokémon|
|#95|| Rock Head/Sturdy|
|28′10″ (8.8m)||463 lbs (210kg)|
|Male: 50%||Female: 50%|
|Evolves From||Evolves Into|
|Egg Group||Catch Rate|
|NFE||1 Defense Point|
Onix () is the 95th Pokémon in the Pokédex. It is a Rock/Ground Type, and is known as the Rock Snake Pokémon.
Onix can have one of two abilities: Rock Head, which prevents this Pokémon from receiving recoil damage from recoil-causing moves; or Sturdy, which gives this Pokémon an immunity from falling to a One-Hit KO move such as Fissure or Horn Drill, and starting with Generation V, Pokémon with Sturdy cannot be KO'd in one hit when it has full HP. Onix's Hidden Ability is Weak Armor, which lowers the Pokémon's Defense by one stage but increases its Speed by one stage whenever it is hit by an attack.
Onix is in the Mineral Egg Group, and it takes approximately 6,400 steps for its Egg to hatch. It takes Onix One Million Experience Points to reach Level 100.
Onix is a large rock snake with a spike-like fin on the top of its head.
 Gender Differences
Onix doesn't have any visible characteristics to differentiate between male and female.
 Game Information
 Original Games
In Generation III, Onix was only available in FireRed and LeafGreen at Rock Tunnel 1F & B1, Seavault Canyon, and Victory Road (all three floors). Onix did not require the National Pokédex to appear in the Generation IV games, as it is available at Oreburgh Mine, Iron Mountain, Victory Road, Stark Mountain, and Snowpoint Temple in Diamond and Pearl, and Oreburgh Mine, Wayward Cave, Iron Island, and Victory Road in Platinum.
In HeartGold and SoulSilver, Onix can be found at Union Cave, Mt. Silver, The Cliiff Cave, Rock Tunnel, Victory Road, and the Safari Zone's Wasteland.
Onix can be found at the lowest parts of Relic Castle in the Generation V games Black and White, at B6 and the Maze, which is accessible after obtaining the National Pokédex.
 Spin-off Games
Onix appears in Trozei at Phobos Drill, Endless Level 46, Forever Level 23 and Mr. Who's Den. In the first Dungeon game Onix can be obtained at Magma Cavern 21F-23F, Magma Cavern Deepest Grounds 1F-2F, and Southern Cavern 40F-50F.
Onix can be recruited in the Generation IV Dungeon games Time&Darkness/Sky at Mt. Travail at random from 1F-19F. Onix appears in Stormy Adventure Squad on Chocolate Island 10F-15F.
Onix has yet to appear in a Pokémon Ranger game.
 Trading Card Game
Onix has appeared in 13 different Trading Card Game Sets and the Southern Islands Promotional set. The Onix from the EX FireRed and Leaf Green set is an Uncommon card and one of the two Onix from the Gym Heroes is a Rare card. The other 11, from the Base, Gym Heroes (the second), Neo Genesis, Aquapolis, EX Sandstorm, EX Team Rocket Returns, EX Unseen Forces, Diamond and Pearl, Stormfront, and Unleashed (two) are listed as Common Cards.
 Anime/Manga Information
Brock used an Onix in many of its anime appearances, before he left it at Pewter Gym, only to return some time later to find that it had evolved into a Steelix. Bruno, Drake, and Roark have also used an Onix in their episodes. The rest were Wild Onix.
Brock's Onix has had three Movie appearances: Mewtwo Strikes Back, The Spell of the Unown, and Celebi: Voice of the Forest. It also appeared in the shorts Pikachu's Vacation and Pikachu and Pichu. Another trainer utilized an Onix in the film Pokémon Heroes: Latios & Latias and Lucario & The Mystery of Mew.
Wild Onix appeared in the films Destiny Deoxys, Giratina & The Sky Warrior, and Zoroark - Master of Illusions.
Onix's Manga info is unknown at this time.
 Pokémon Information
 Competitive Battling
Onix is in the NFE tier as a result of being a first stage Pokémon.
 Area Location
|Red||Common||Rock Tunnel and Victory Road|
|Blue||Common||Rock Tunnel and Victory Road|
|Yellow||Common||Rock Tunnel and Victory Road|
|Gold||Common||Union Cave, Victory Road, Rock Tunnel, Mt. Silver|
|Silver||Common||Union Cave, Victory Road, Rock Tunnel, Mt. Silver|
|Crystal||Common||Union Cave, Victory Road, Rock Tunnel, Mt. Silver|
|FireRed||Uncommon||Rock Tunnel 1F & B1, Seavault Canyon, Victory Road 1F-3F|
|LeafGreen||Uncommon||Rock Tunnel 1F & B1, Seavault Canyon, Victory Road 1F-3F|
|Diamond/Pearl/Platinum||10%||Oreburgh Mine (1F & B1)|
|Diamond/Pearl/Platinum||10%||Iron Island (1F & B1 Left&Right caves)|
|Diamond/Pearl/Platinum||30%||Iron Island (B2 Left&Right caves; B3)|
|Diamond/Pearl/Platinum||15%||Snowpoint Temple (1F)|
|Diamond/Pearl/Platinum||5%||Snowpoint Temple (B1-B3)|
|Diamond/Pearl||10%||Victory Road (1F, 2F, National Dex areas)|
|Diamond/Pearl/Platinum||5%||Stark Mountain (Entrance and Interior)|
|Platinum||15%||Wayward Cave (1F & B1)|
|Platinum||20%||Victory Road (1F, all hours of day)|
|Platinum||5%||Victory Road (2F, all hours of day)|
|Platinum||10%||Victory Road (B1, all hours of day)|
|Platinum||20%||Victory Road (National Dex Areas, all hours of day)|
|HeartGold/SoulSilver||5%||Union Cave - 1F and B2|
|HeartGold/SoulSilver||10%||Union Cave - B1|
|HeartGold/SoulSilver||30%||Mt. Silver (2F and Mountainside)|
|HeartGold/SoulSilver||10%||Cliff Cave (B1, 1F, 2F, all hours of day)|
|HeartGold/Soul Silver||Unknown%||Safari Zone (Wasteland, all hours of day)|
|HeartGold/Soul Silver||20%||Rock Tunnel (B1)|
|HeartGold/Soul Silver||15%||Victory Road (1F-3F)|
|Black/White||15%||Relic Castle (B6 and Maze)|
|I||Pokémon Red||As it grows, the stone portions of its body harden to become similar to diamond, but colored black.|
|I||Pokémon Blue||As it grows, the stone portions of its body harden to become similar to diamond, but colored black.|
|I||Pokémon Yellow||Burrows at high speed in search of food. The tunnels it leaves are used as homes by Digletts.|
|II||Pokémon Gold||It twists and squirms through the ground. The thunderous roar of its tunneling echoes a long way.|
|II||Pokémon Silver||It rapidly bores through the ground at 50 MPH by squirming and twisting its massive, rugged body.|
|II||Pokémon Crystal||As it digs through the ground, it absorbs many hard objects. This is what makes its body so solid.|
|III||Pokémon Ruby||Onix has a magnet in its brain. It acts as a compass so that this Pokémon does not lose direction while it is tunneling. As it grows older, its body becomes increasingly rounder and smoother.|
|III||Pokémon Sapphire||Onix has a magnet in its brain. It acts as a compass so that this Pokémon does not lose direction while it is tunneling. As it grows older, its body becomes increasingly rounder and smoother.|
|III||Pokémon Emerald||There is a magnet in its brain that prevents an Onix from losing direction while tunneling. As it grows older, its body becomes steadily rounder and smoother.|
|III||Pokémon FireRed||It usually lives underground. It searches for food while boring its way through the ground at 50 miles per hour.|
|III||Pokémon LeafGreen||As it grows, the stone portions of its body harden to become similar to black-colored diamonds.|
|IV||Pokémon Diamond||When it travels underground, it causes rumbling and tremors. It can move at 50 MPH.|
|IV||Pokémon Pearl||It squirms through the ground using its long and rugged body. It always eats while burrowing.|
|IV||Pokémon Platinum||It burrows through the ground at a speed of 50 MPH while feeding on large boulders.|
|IV||Pokémon HeartGold||It twists and squirms through the ground. The thunderous roar of its tunneling echoes a long way.|
|IV||Pokémon SoulSilver||It rapidly bores through the ground at 50 MPH by squirming and twisting its massive, rugged body.|
|V||Pokémon Black||It burrows through the ground at a speed of 50 MPH while feeding on large boulders.|
|V||Pokémon White||It burrows through the ground at a speed of 50 MPH while feeding on large boulders.|
|V||Pokémon Black 2||Unknown Entry|
|V||Pokémon White 2||Unknown Entry|
|VI||Pokémon X||Unknown Entry|
|VI||Pokémon Y||Unknown Entry|
 Via Level-Up
 Via TM/HM
 Via Breeding
 Generation IV Exclusive Moves
 Via TM
 Via Move Tutor
 Heart Gold/Soul Silver
 Evolution Line
|Trade while holding Metal Coat|
 Type Matchups
|Type||Attack Advantages||Attack Disadvantages||Defense Advantages||Defense Disadvantages|
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