The fourth generation (generation IV) of the Pokémon franchise features 107 species of pokémon introduced to the core video game series in the 2006 Nintendo DS games Pokémon Diamond and Pearl. Some Pokémon in this generation were introduced in games and animated adaptations of the franchise before Diamond and Pearl, such as Bonsly, Mime Jr., and Munchlax, which were recurring characters in the Pokémon anime series in 2005 and 2006.

The following list details the 107 Pokémon of generation IV in order of their National Pokédex number. The first Pokémon, Turtwig, is number 387 and the last, Arceus, is number 493. Alternate forms that result in type changes are included for convenience. Mega Evolutions and regional forms are included on the pages for the generation in which they were introduced.

Design and development Pokémon are a species of fictional creatures created for the Pokémon media franchise. Developed by Game Freak and published by Nintendo, the Japanese franchise began in 1996 with the video games Pokémon Red and Green for the Game Boy, which were later released in North America as Pokémon Red and Blue in 1998. In these games and their sequels, the player assumes the role of a Trainer whose goal is to capture and use the creatures' special abilities to combat other Pokémon. Some Pokémon can transform into stronger species through a process called evolution via various means, such as exposure to specific items. Each Pokémon have one or two elemental types, which define its advantages and disadvantages when battling other Pokémon. A major goal in each game is to complete the Pokédex, a comprehensive Pokémon encyclopedia, by capturing, evolving, and trading with other Trainers to obtain individuals from all Pokémon species.

List of Pokémon

Turtwig Grotle Torterra Chimchar Monferno Infernape Piplup Prinplup Empoleon Starly Staravia Staraptor Bidoof Bibarel Kricketot Kricketune Shinx Luxio Luxray Budew Roserade Cranidos Rampardos Shieldon Bastiodon Burmy Wormadam Mothim Combee Vespiquen Pachirisu Buizel Floatzel Cherubi Cherrim Shellos Gastrodon Ambipom Drifloon Drifblim Buneary Lopunny Mismagius Honchkrow Glameow Purugly Chingling Stunky Skuntank Bronzor Bronzong Bonsly Mime Jr. Happiny Chatot Spiritomb Gible Gabite Garchomp Munchlax Riolu Lucario Hippopotas Hippowdon Skorupi Drapion Croagunk Toxicroak Carnivine Finneon Lumineon Mantyke Snover Abomasnow Weavile Magnezone Lickilicky Rhyperior Tangrowth Electivire Magmortar Togekiss Yanmega Leafeon Glaceon Gliscor Mamoswine Porygon-Z Gallade Probopass Dusknoir Froslass Rotom Uxie Mesprit Azelf Dialga Palkia Heatran Regigigas Giratina Cresselia Phione Manaphy Darkrai Shaymin Arceus

+ List of Pokémon species introduced in generation IV (2006) Name Type(s) Evolves from Evolves into Notes Turtwig(0387) ||align=center| Grass Grotle (#388) Its shell is made from hardened soil. It can photosynthesize with its body. It becomes more energetic under sunlight. The sprout on its head wilts if it is thirsty. Grotle(0388) ||align=center| Grass Turtwig (#387) Torterra (#389) It lives in forests near clean spring water, and carries thirsty Pokémon to those springs. It goes out during the day to bathe in the sun. Torterra (0389) ||align=center| Grass / Ground Grotle (#388) Some Pokémon make their nests on a Torterra's back, and their children may spend their entire lives there. Groups of Torterra roaming around in search of clear water have been mistaken for forests moving on their own. Ancient civilizations believed that a giant Torterra lived underground. Chimchar(0390) ||align=center| Fire Monferno (#391) Its rear end expels gas created in its belly and lights it on fire. It only puts the fire out when sleeping to avoid causing wildfires. Monferno(0391) ||align=center| Fire / Fighting Chimchar (#390) Infernape (#392) The brightness of its facial markings and the fire on its tail indicates its rank in a pack. It climbs around walls and ceilings to attack, and uses fire to keep the opponent at a safe distance. Infernape(0392) ||align=center| Fire / Fighting Monferno (#391) It uses all its limbs in battle to toss opponents around. Its fighting style resembles a sort of martial art or dance. Piplup(0393) ||align=center| Water Prinplup (#394) A proud and stubborn species, it does not easily accept food or care from its Trainer. It can dive under cold waters for up to 10 minutes to hunt. Prinplup(0394) ||align=center| Water Piplup (#393) Empoleon (#395) Because each Prinplup believes it is the most important of its species, it prefers to live alone. Its wings are strong enough to snap trees in half. Empoleon(0395) ||align=center| Water / Steel Prinplup (#394) The Empoleon with the biggest horns is the one that leads a pack. While it prefers avoiding unnecessary violence, it will attack anything that hurts its pride. The edges of its wings are strong and sharp enough to cut chunks of ice. Starly(0396) ||align=center| Normal / Flying Staravia (#397) A lone Starly is weak, so it lives in flocks, though they may start bickering if the group becomes too big. Staravia(0397) ||align=center| Normal / Flying Starly (#396) Staraptor (#398) Staravia is also weak on its own, so it joins or commands flocks. A territorial species, it may compete with other bird Pokémon. Staraptor(0398) ||align=center| Normal / Steel Staravia (#397) Mega Evolution Upon evolution, it leaves its flock to lead some csolitary steel. It is strong enough to carry large Pokémon without effort. It cares for its comb. Bidoof(0399) ||align=center| Normal Bibarel (#400) It creates and lives in dams with other Bidoof and Bibarel. Its teeth have been noted to grow at the same rate as those of Rattata. It gnaws on wood to keep them filed down. Bibarel(0400) ||align=center| Normal / Water Bidoof (#399) It builds dams from wood and mud. Its fur can repel water and retain heat. It is more skilled at swimming than walking. Kricketot(0401) ||align=center| Bug Kricketune (#402) By rubbing its antennae together, it emits sounds similar to those of a xylophone, which it uses for communication. Groups of Kricketot chirp frequently during autumn evenings. Kricketune(0402) ||align=center| Bug Kricketot (#401) Its arms are similar to blades. It rubs them on its body to produce melodic sounds. Its violin-like cry is the subject of an internet meme, which was officially referenced in Pokémon Legends: Arceus. Shinx(0403) ||align=center| Electric Luxio (#404) The movements of its muscles generate static electricity, which makes it glow. It can flash light on opponents to blind them, and emit light from the tip of its tail to communicate with other Shinx. Luxio(0404) ||align=center| Electric Shinx (#403) Luxray (#405) It gathers with other Luxio to generate more electricity than usual. It can release up to 1,000,000 volts on an opponent through its claws. Luxray(0405) ||align=center| Electric Luxio (#404) It can see through solid objects, though the energy this takes requires that it sleeps for long periods of time. Luxray form packs led by a male. Budew(0406) ||align=center| Grass / Poison Roselia (#315) The opening of its buds spreads pollen, which can cause sneezing. It keeps them closed during winter, and opens them in spring. Budew raised on cleaner water have more toxic pollen. Roserade(0407) ||align=center| Grass / Poison Roselia (#315) The thorns on its arms have different, though equally deadly types of poison. It lures prey in with a sweet aroma, and attacks with thorny vines hidden on its body. Cranidos(0408) ||align=center| Rock Rampardos (#409) Cranidos, Shieldon, and their respective evolutions have been revived from 100 million year old fossils. It used its thick skull to break trees and fight against Aerodactyl. It hardens its head further by headbutting other Cranidos. Rampardos(0409) ||align=center| Rock Cranidos (#408) Though strong and sturdy enough to topple skyscrapers, its skull has left so little space for its brain that it is smaller than that of a Cranidos. Researchers theorize that it went extinct due to its low intelligence. Shieldon(0410) ||align=center| Rock / Steel Bastiodon (#411) Its facial bones are heavily armored, so fossils have shown no damage to them. It avoids fighting by withstanding attacks to its head, though it is weak to attacks from behind. Bastiodon(0411) ||align=center| Rock / Steel Shieldon (#410) When attacked, they form a wall with their shield-esque faces to protect themselves and others. Burmy(0412)  Bug rowspan=3 Wormadam (#413)Mothim (#414) It makes cloaks out of nearby materials, glued together with its silk. If the cloak is broken, it rushes to create another. Male Burmy evolve into Mothim, while female Burmy evolve into Womadam. It produces a "Plant Cloak" from sticks and leaves; a "Sandy Cloak" from sand, mud, and rocks; and a "Trash Cloak" from urban trash. Wormadam(0413) ||align=center| Bug / Grass Burmy (#412) rowspan=3 Its cloak has become a part of its body which it never sheds, and gives it a second type.

The Plant Cloak has grown flowers. ||align=center| Bug / Ground The Sandy Cloak is harder than usual, and can protect it from a Starly's attacks. ||align=center| Bug / Steel The Trash Cloak provides protection and camouflage in more populated areas. Mothim(0414) ||align=center| Bug / Flying Burmy (#412) A nomadic species, it is constantly looking for honey and nectar to consume. It tends to steal honey from Combee hives. Combee(0415) ||align=center| Bug / Flying Vespiquen (#416) It has three heads, each with its own mind. Swarms of around 100 Combee form walls similar to beehives. They are constantly gathering honey to please their Vespiquen. Vespiquen(0416) ||align=center| Bug / Flying Combee (#415) Only female Combee can evolve into Vespiquen. It houses growing Combee in its abdomen. It uses pheromones to issue commands to its hive. Pachirisu(0417) ||align=center| Electric colspan="2" It was used by Sejun Park to win the 2014 Pokémon World Championships. It grooms its tail regularly, and uses it as a pillow when sleeping. It uses its shed fur to make furballs, charges them with static electricity, and stores them and its hoarded food inside tree holes to deter unsuspecting thieves. Buizel(0418) ||align=center| Water Floatzel (#419) It has a sac on its neck that it inflates to float on water, or deflates to dive. It spins its tails like a propeller to swim faster and slice through seaweed that clings to its body. Floatzel(0419) ||align=center| Water Buizel (#418) Its sac evolved to more efficiently hunt prey, though it spends most of its time rescuing drowning people and helping fishermen carry their catch. Cherubi(0420) ||align=center| Grass Cherrim (#421) It has a second, smaller head that stores nutrients required for evolution. Before evolving, it shrivels and falls off. Other Pokémon, such as Starly, may try to eat it. Cherrim(0421) ||align=center| Grass Cherubi (#420) In its bud-like "Overcast Form", it normally stands still waiting for sunlight to absorb, and is protected by a hard, petal-like shell. In its "Sunshine Form", it blooms, becomes more active, and emits a sweet scent that may attract predators. Its petals close again when the sunlight wanes. Shellos(0422) ||align=center| Water Gastrodon (#423) Following an event of allopatric speciation, Shellos and Gastrodon have been divided into two visually different forms based on their habitat, the temperature of their water, and their diet. East sea Shellos live in colder water, while west sea Shellos live in warmer water. Normally a friendly species, they ooze a sticky fluid, thought to be a form of sweat, when bothered. They can go on land for short periods of time, but have to go back to water to keep themselves hydrated. Gastrodon(0423)