List of Pokémon with different forms

Some Pokémon of the same species may appear in different forms due to weather conditions, being from different regions, or other reasons. The difference between forms of a Pokémon species may be only visual, but can also present different evolution options, availability, types, moves, base stats and height and weight. Different forms are recorded in the corresponding Pokédex entry under different Pokémon form switches. Some Pokémon forms can be changed through the Form-change mechanic.

Alolan forms
There are certain Kanto-region Pokémon that have different forms as they inhabit the Alola region. Alolan forms are different in availability, types, moves, stats, and Pokédex description.

Regular=

Shiny= PS Rattata PS Rattata PS Raticate PS Raticate PS Raichu PS Raichu PS Sandshrew PS Sandshrew PS Sandslash PS Sandslash PS Vulpix PS Vulpix PS Ninetales PS Ninetales PS Diglett PS Diglett PS Dugtrio PS Dugtrio PS Meowth PS Meowth PS Persian PS Persian PS Geodude PS Geodude PS Graveler PS Graveler PS Golem PS Golem PS Grimer PS Grimer PS Muk PS Muk PS Exeggutor PS Exeggutor PS Marowak PS Marowak

Galarian forms
There are certain Pokémon that have different forms as they inhabit the Galar region. Galarian forms are different in availability, types, moves, stats, Pokédex description, and cries. Galarian Corsola has not been released yet. Regular=

Shiny= PS Meowth PS Meowth PS Ponyta PS Ponyta PS Rapidash PS Rapidash PS Slowpoke PS Slowpoke PS Slowbro PS Slowbro PS Farfetch'd PS Farfetch'd PS Weezing PS Weezing PS Mr. Mime PS Mr. Mime PS Articuno PS Articuno PS Zapdos PS Zapdos PS Moltres PS Moltres PS Slowking PS Slowking PS Corsola PS Corsola PS Zigzagoon PS Zigzagoon PS Linoone PS Linoone PS Darumaka PS Darumaka PS Darmanitan PS Darmanitan PS Darmanitan PS Darmanitan PS Yamask PS Yamask PS Stunfisk PS Stunfisk

Hisuian forms
There are certain Pokémon that have different forms as they inhabit the Hisui region. Hisuian forms are different in availability, types, moves, stats, and Pokédex description. Currently only a few of them are available.

Regular=

Shiny= PS Growlithe PS Growlithe PS Arcanine PS Arcanine PS Voltorb PS Voltorb PS Electrode PS Electrode PS Typhlosion PS Typhlosion PS Qwilfish PS Qwilfish PS Sneasel PS Sneasel PS Samurott PS Samurott PS Lilligant PS Lilligant PS Zorua PS Zorua PS Zoroark PS Zoroark PS Braviary PS Braviary PS Sliggoo PS Sliggoo PS Goodra PS Goodra PS Avalugg PS Avalugg PS Decidueye PS Decidueye

Unown
Unown has twenty-eight different forms, being the difference only visual. Each of these forms resembles letter of Latin alphabet with addition of exclamation (!) and question (?) marks. A to Z forms are extremmely rare but can be found in the wild. All forms are common during certain events. Unown Pokédex entry has custom form switches. Regular=

Shiny= PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown PS Unown Pokédex switch=

Spinda
Spinda has twenty different patterns, being the difference only visual. Spinda patterns differ in regular and shiny variants. Nine Spinda patterns have been released so far. Only one form is available at a time via Research tasks. Spinda Pokédex entry has custom form switches. Regular=

Shiny= PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda PS Spinda Pokédex switch=

Castform
Castform has four different forms, varying in types and moves. Each of these forms spawns in specific weather conditions. Regular=

Shiny= PS Castform PS Castform PS Castform PS Castform

Kyogre and Groudon
Kyogre and Groudon have two different forms, varying in stats, types, and Pokédex description. Primal forms will be available from Primal Raids, but have not been released yet. Regular=

Shiny= PS Kyogre PS Kyogre PS Groudon PS Groudon

Deoxys
Deoxys has four different forms, varying in stats and moves. Regular=

Shiny= PS Deoxys PS Deoxys PS Deoxys PS Deoxys Pokédex switch=

Burmy and Wormadam
Burmy and Wormadam have three different forms named cloaks. While Wormadam forms differs for its type, Burmy forms differ only with appearance of its cloak. The cloak of Burmy depends on where it spawns. Regular=

Shiny= PS Burmy PS Burmy PS Burmy PS Wormadam PS Wormadam PS Wormadam

Cherrim
Cherrim has two different forms, being the difference only visual. Sunshine form Cherrim spawns during sunny weather whilst Overcast form Cherrim spawns during every else weather condition. Regular=

Shiny= PS Cherrim PS Cherrim

Shellos and Gastrodon
Shellos and Gastrodon have two different forms, being the difference only visual. West Sea form is available on the West Hemisphere and East Sea form is available on the East Hemisphere. Regular=

Shiny= PS Shellos PS Shellos PS Gastrodon PS Gastrodon

Rotom
Rotom has six different forms, varying in types and moves. Rotom Pokédex entry has custom form switches. Rotom Wash and Mow have been released. Regular=

Shiny= PS Rotom PS Rotom PS Rotom PS Rotom PS Rotom PS Rotom Pokédex switch=

Giratina
Giratina has two different forms, varying in stats and moves. Altered Forme is more defense-oriented while Origin Forme is more offense-oriented. Regular=

Shiny= PS Giratina PS Giratina

Shaymin
Shaymin has two different forms, varying in types and cries. The forms can be changed through the Form-change mechanic. Regular=

Shiny= PS Shaymin PS Shaymin

Arceus
Arceus has eighteen different forms depending on its type. It has not been released yet. Regular=

Shiny= PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus PS Arceus

Basculin
Basculin has three different forms, being the difference only visual. Red-Striped form is available in the Western Hemisphere and Blue-Striped form is available in the Eastern Hemisphere. White-Striped form has not been released yet. Regular=

Shiny= PS Basculin PS Basculin PS Basculin

Darmanitan
Besides its Galarian form, Darmanitan has two different forms, varying in types, and cries. Zen Mode has not been released yet. Regular=

Shiny= PS Darmanitan PS Darmanitan

Deerling and Sawsbuck
Deerling and Sawsbuck have four different forms, being the difference only visual, one for each season of the year. Availability depends on the current Season. Regular=

Shiny= PS Deerling PS Deerling PS Deerling PS Deerling PS Sawsbuck PS Sawsbuck PS Sawsbuck PS Sawsbuck

Forces of Nature
Each member of Forces of Nature has two distinct forms - Incarnate Forme and Therian Forme that differ in stats, and cries. Enamorus has not been released yet. Regular=

Shiny= PS Tornadus PS Tornadus PS Thundurus PS Thundurus PS Landorus PS Landorus PS Enamorus PS Enamorus

Kyurem
Kyurem has three different forms, varying in stats, moves, Pokédex description, and cries. White and Black forms have not been released. Regular=

Shiny= PS Kyurem PS Kyurem PS Kyurem

Keldeo
Keldeo has two different forms namely Ordinary and Resolute formes. It has not been released yet. Regular=

Shiny= PS Keldeo PS Keldeo

Meloetta
Meloetta has two different forms, varying in stats, moves and types. Pirouette form has not been released yet. Regular=

Shiny= PS Meloetta PS Meloetta

Genesect
Genesect has five different forms depending on the drive it is using, varying in moves. Genesect Pokédex entry has custom form switches. Regular=

Shiny= PS Genesect PS Genesect PS Genesect PS Genesect PS Genesect Pokédex switch=

Greninja
Greninja has two different forms varying in stats. Only one has been released yet. Only regular Greninja is recorded in the Pokédex. Regular=

Shiny= PS Greninja PS Greninja

Vivillon
Vivillon has eighteen different patterns, being the difference only visual. It has not been released yet.

Regular=

Shiny= PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon PS Vivillon Medal=

Flabébé, Floette, and Florges
Flabébé, Floette, and Florges have five different colors, being the difference only visual. Yelow, Blue and Red colors are region-exclusive, while Orange and White are available worldwide. Regular=

Shiny= PS Flabébé PS Flabébé PS Flabébé PS Flabébé PS Flabébé PS Floette PS Floette PS Floette PS Floette PS Floette PS Florges PS Florges PS Florges PS Florges PS Florges

Furfrou
Furfrou has ten different forms, being the difference only visual. Only Natural Trim can be caught and can be changed change via Form-change mechanic. Heart trim is available during events. Matron and Dandy trim are available worldwide, while other trims are region-exclusive. Furfrou Pokédex entry has custom form switches. Regular=

Shiny= PS Furfrou PS Furfrou PS Furfrou PS Furfrou PS Furfrou PS Furfrou PS Furfrou PS Furfrou PS Furfrou PS Furfrou Pokédex switch=

Aegislash
Aegislash has two different forms varying in stats. It has not been released yet.

Pumpkaboo and Gourgeist
Pumpkaboo and Gourgeist have four different sizes, each form having different stats. Super size have different cry.

Regular=

Shiny= PS Pumpkaboo PS Pumpkaboo PS Pumpkaboo PS Pumpkaboo PS Gourgeist PS Gourgeist PS Gourgeist PS Gourgeist

Xerneas
Xerneas has two different forms namely Neutral and Active modes. While in bag, it stays at Neutral mode. When battling, it changes to active mode. Active mode is not recorded in the Pokédex. Regular=

Shiny= PS Xerneas PS Xerneas

Zygarde
Zygarde has three different forms varying in stats. It has not been released yet.

Hoopa
Hoopa has two different forms. They can be interchanged via Stardust and Hoopa Candy. The forms vary in availability, types, moves, stats, and cries. The forms can be changed through the Form-change mechanic. Regular=

Shiny= PS Hoopa PS Hoopa

Oricorio
Oricorio has four different styles, varying in types, Pokédex description, and cries. The styles are region-exclusive. Regular=

Shiny= PS Oricorio PS Oricorio PS Oricorio PS Oricorio

Lycanroc
Lycanroc has three different forms, varying in stats, moves, Pokédex description, and cries. Dusk form has not been released yet. Regular=

Shiny= PS Lycanroc PS Lycanroc PS Lycanroc

Wishiwashi
Wishiwashi has two different forms varying in stats and Pokédex description. It has not been released yet.

Silvally
Silvally has eighteen different forms varying in type and Pokédex description. It has not been released yet.

Minior
Minior has two different forms varying in stats and Pokédex description. It has not been released yet.

Mimikyu
Mimikyu has two different forms varying in Pokédex description. It has not been released yet.

Necrozma
Necrozma has four different forms varying in type and stats. It has not been released yet.

Magearna
Magearna has two different forms. It has not been released yet.

Cramorant
Cramorant has three different forms varying in Pokédex description, and cries. It has not been released yet.

Toxtricity
Toxtricity has two different forms varying in stats, Pokédex description, and cries. It has not been released yet.

Sinistea and Polteageist
Sinistea and Polteageist have two different forms varying in Pokédex description, and cries. It has not been released yet.

Alcremie
Alcremie has nine different forms varying in Pokédex description, and cries. It has not been released yet.

Eiscue
Eiscue has two different forms varying in stats, Pokédex description, and cries. It has not been released yet.

Morpeko
Morpeko has two different forms varying in Pokédex description, and cries. It has not been released yet.

Zacian and Zamazenta
Zacian and Zamazenta have two different forms varying in stats, type, Pokédex description, and cries. Crowned forms have not been released yet. Regular=

Shiny= PS Zacian PS Zacian PS Zamazenta PS Zamazenta

Eternatus
Eternatus has two different forms varying in stats. It has not been released yet.

Urshifu
Urshifu has two different forms varying in stats, types, Pokédex description and moves. It has not been released yet.

Zarude
Zarude has two different forms, only differing in visuals. Only one form has been released yet. Only regular Zarude is recorded in the Pokédex. Regular=

Shiny= PS Zarude PS Zarude

Calyrex
Calyrex has three different forms varying in stats, types, Pokédex description and moves. It has not been released yet.

Gimmighoul
Gimmighoul has two different forms. It was teased after Dratini Community Day Classic, but it has not been released yet. Regular=

Shiny= PS Gimmighoul (???) PS Gimmighoul (???)

Trivia

 * On May, 2018, Alolan forms of Pokémon, originally discovered in the Kanto region, were stated to begin to appear in-game.
 * Some Event Pokémon also count as different forms rather than costumed Pokémon in game, thus they count towards the Special Trades if one of Trainers don't have such Event Pokémon.
 * Shadow Pokémon and Purified Pokémon are also treated as different forms in game.