List of Pokémon forms by release date/2019

By the start of 2019, the number of released forms was:

By the end of 2019, the number of released forms was:

In 2019, 100 new Pokémon species, 116 distinct regular forms and 201 shiny forms were made available to be obtained. The following medals became achievable for the first time:
 * Sinnoh Gold Sinnoh Gold.png.
 * Unova Bronze Unova Bronze.png and Silver Unova Silver.png.

The total number of Pokémon species and Pokémon distinct forms (regular and shiny) was updated according to the following events in 2019:

January
Spinda pattern 5 was released with the change of Field Research.

Regular (1) =

January
Shiny Totodile was released on the thirteenth Community Day.

Shiny (3) =

January
Shiny Zigzagoon, Taillow and Groudon were released on Hoenn Celebration 2019.

Shiny (5) =

January
Shiny Feebas was released on Limited Research.

Shiny (2) =

January
Shiny Psyduck was released on Safari Zone Porto Alegre.

Shiny (2) =

January
Palkia was released as a Raid Boss.

Regular (1) =

January
More Sinnoh Region Pokémon became available.

Regular (15) =

Shiny (1) =

February
Shiny Spoink was released on Lunar New Year 2019.

Shiny (2) =

February
Shiny Meltan was released.

Shiny (2) =

February
Happiny and Shiny Cleffa and Smoochum were released on Valentine's Day 2019. Spinda with heart-shaped pattern was released. Later this pattern was registered in the Pokédex as pattern #9, rising up Hoenn-region Pokédex to 149 distinct forms.

Regular (1) =

Shiny (5) =

February
Mamoswine and shiny Swinub was released on the fourteenth Community Day.

Regular (1) =

Shiny (3) =

February
Shiny Latias was released on Special Raid Week.

Shiny (1) =

February
Clamperl was released on Limited Research with it shiny form.

Regular (3) =

Shiny (3) =

February
Smeargle was released via GO Snapshot. All Johto-region Pokémon species were released, becoming the second region to be possible to complete the Pokédex.

Regular (1) =

February
Shiny Pidgey and Rattata were released on Pokémon Day 2019.

Shiny (5) =

March
Dialga was released as a Raid Boss. Spinda pattern 2 was released with the change of Field Research. Sinnoh Gold medal became achievable for the first time.

Regular (2) =

March
Shiny Mankey and Machop were released on Battle Showdown 2019.

Shiny (5) =

March
Shiny Lunatone and Solrock were released on Equinox 2019.

Shiny (2) =

March
Shiny Treecko was released on the fifteenth Community Day.

Shiny (3) =

March
Deoxys Defense Forme was released as a Raid Boss on EX Raid Battle.

Regular (1) =

March
Shiny Lotad and Castform were released on Limited Research.

Shiny (4) =

April
Shiny Scyther was released on Bug Out. Origin Giratina was released as a Raid Boss.

Regular (1) =

Shiny (2) =

April
Shiny Bagon was released on the sixteenth Community Day.

Shiny (3) =

April
Shiny Latios was released on Special Raid Week.

Shiny (1) =

April
Shiny Igglybuff and Buneary were released on Eggstravaganza 2019.

Shiny (5) =

April
Shiny Lapras and Shuckle were released on Safari Zone in Sentosa.

Shiny (2) =

April
Shiny Diglett was released on Earth Day 2019. The Lake Guardians were released in wild.

Regular (3) =

Shiny (2) =

May
Spinda pattern 4 was released with the change of Field Research. Shiny Seel was released.

Regular (1) =

Shiny (2)=

May
Shiny Aipom was released on Detective Pikachu Celebration.

Shiny (2) =

May
Several Sinnoh-region Pokémon were released, featuring new Lure Modules as an evolution method.

Regular (23) =

Shiny (3)=

May
Shiny Torchic was released on the seventeenth Community Day.

Shiny (3) =

May
Shiny Bronzor was released on Extraordinary Raid Week.

Shiny (2) =

May
Shiny Cresselia was released in its second release.

Shiny (1) =

June
Shiny Onix, Lileep and Anorith were released on Adventure Week 2019.

Shiny (6) =

June
Shiny Slakoth was released on the eighteenth Community Day.

Shiny (3) =

June
Shiny Horsea was released on Chicago Pokémon GO Fest 2019. Jirachi was available for attendees.

Regular (1) =

Shiny (3) =

June
Shiny Alolan Rattata, Sandshrew, Vulpix, Diglett, Meowth, Geodude, Grimer and Exeggutor were released on Anniversary.

Shiny (16) =

June
Shiny Raikou was released on Special Raid Challenge.

Shiny (1) =

July
Deoxys Speed Forme was released as a Raid Boss on EX Raid Battle. Shiny Spinda pattern 8 was released with the change of Field Research

Regular (1) =

Shiny (1) =

July
Shiny Nidoran♂ was released on Dortmund Pokémon GO Fest 2019.

Shiny (3) =

July
Armored Mewtwo was released as a Raid Boss, rising up Kanto-region Pokédex to 170 distinct forms.

Regular (1) =

July
Shiny Entei was released on Special Raid Challenge.

Shiny (1) =

July
Shiny Mudkip was released on the nineteenth Community Day.

Shiny (3) =

July
Shiny Ekans, Zubat, Koffing and Sneasel were released on Team GO Rocket Disruption.

Shiny (9) =

July
Shiny Rayquaza was released with its third release.

Shiny (1) =

August
Shiny Ralts was released on the twentieth Community Day.

Shiny (4) =

August
Shiny Bonsly was released on Gift Event.

Shiny (2) =

August
Shiny Poliwag was released on Yokohama Pokémon GO Fest 2019.

Shiny (4) =

August
Shiny Suicune was released on Special Raid Challenge.

Shiny (1) =

August
Shiny Carvanha and Barboach were released on Water Festival 2019.

Shiny (4) =

September
Shiny Electrike and Shiny Spinda pattern 3 were released with the change of Field Research.

Shiny (3) =

September
Shiny Sentret and Gligar were released on Johto Journey.

Shiny (4) =

September
Shiny Farfetch'd, Kangaskhan, Mr. Mime and Tauros were released on Global Challenge, Global Hatches.

Shiny (4) =

September
Shiny Turtwig was released on the twenty-first Community Day.

Shiny (3) =

September
Main release of Unova Region on A Unova Unveiling. Shiny Mewtwo was released. Unova-region Pokédex introduced 156 new Pokémon species and 175 distinct forms. Unova Bronze medal became achievable for the first time.

Regular (46) =

Shiny (9) =

September
Shiny Yanma was released on Safari Zone in Montreal.

Shiny (2) =

September
Shiny Altered Forme Giratina was released with its third release.

Shiny (1) =

September
Shiny Zangoose, Seviper and Mime Jr. were released on World Tourism Day.

Regular (1) =

Shiny (3) =

October
Shiny Oddish was released on Safari Zone in New Taipei City.

Shiny (4) =

October
Shiny Trapinch was released on the twenty-second Community Day.

Shiny (3) =

October
Darkrai and Yamask were released on Halloween 2019.

Regular (3) =

Shiny (2) =

November
Shiny Skarmory, Regirock, Regice and Registeel were released on A Colossal Discovery. Shiny Spinda pattern 1 was released with the change of Field Research.

Shiny (5) =

November
Regigigas was released on A Colossal Discovery Special Research.

Regular (1) =

November
Cobalion was released as a Raid Boss.

Regular (1) =

November
Shiny Meowth was released on Team GO Rocket Leaders Disruption.

Shiny (2) =

November
Galar-region forms became available for the first time, rising up Kanto-region Pokédex to 171 distinct forms and Hoenn-region Pokédex to 162 distinct forms. Shiny Chimchar was released on the twenty-third Community Day. Galarian Weezing was released to celebrate the release of Pokémon Sword and Shield.

Regular (1) =

Shiny (3) =

November
Shiny Tentacool was released on Supereffective Week.

Shiny (2) =

November
Terrakion was released as a Raid Boss. Unova Silver medal became achievable for the first time.

Regular (1) =

December
Shiny Burmy was released on Evolution Event.

Shiny (7) =

December
Shiny Gible was released with the egg shuffle, without any prior announcement.

Shiny (3) =

December
Virizion was released as a Raid Boss.

Regular (1) =

December
Cubchoo and Cryogonal were released on Holiday 2019. Shiny Snover and Stantler were released. For Stantler case, normal shiny version is only available after the event ended.

Regular (3) =

Shiny (3) =