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 1st
Pattern 5 of Spinda was available in field research.

Regular (1) =

January 12th
Shiny Totodile became available on the 13th Community Day.

Shiny (3) =

January 15th
Shiny Zigzagoon, Taillow and Groudon became available for the first time during Hoenn Celebration 2019.

Shiny (5) =

January 19th
Shiny Feebas became available during Limited Research.

Shiny (2) =

January 25th
Shiny Psyduck became available at the start of Safari Zone Porto Alegre.

Shiny (2) =

January 29th
Palkia became available as Raid Boss for the first time.

Regular (1) =

January 31st
More Sinnoh Region Pokémon became available.

Regular (15) =

Shiny (1) =

February 4th
Shiny Spoink became available on Lunar New Year 2019.

Shiny (2) =

February 5th
Shiny Meltan became available for a limited time.

Shiny (2) =

February 13th
Happiny and Shiny Cleffa and Smoochum became available 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 16th
Mamoswine and its Shiny family became available on the 14th Community Day.

Regular (1) =

Shiny (3) =

February 22nd
Shiny Latias became available in the Special Raid Week.

Shiny (1) =

February 23rd
Clamperl family became available available during Limited Research, together with shiny forms.

Regular (3) =

Shiny (3) =

February 25th
Smeargle became available via GO Snapshot. All Johto-region Pokémon species were released, becoming the second region to be possible to complete the Pokédex.

Regular (1) =

February 26th
Shiny Pidgey and Rattata were released in Pokémon Day 2019.

Shiny (5) =

March 1st
Dialga became available as Raid Boss for the first time. Pattern 2 of Spinda was released in field research. Sinnoh Gold medal became achievable for the first time.

Regular (2) =

March 5th
Shiny Mankey and Machop were released on Battle Showdown 2019.

Shiny (5) =

March 19th
Shiny Lunatone and Solrock were released on Equinox 2019.

Shiny (2) =

March 23rd
Shiny Treecko became available on the 15th Community Day.

Shiny (3) =

March 27th
Deoxys Defense Forme became available to be battled exclusively in EX Raid Battle.

Regular (1) =

March 30th
Shiny Lotad and Castform became available during Limited Research.

Shiny (4) =

April 2nd
Shiny Scyther was released on Bug Out. Origin Giratina became available as Raid Boss for the first time.

Regular (1) =

Shiny (2) =

April 13th
Shiny Bagon became available on the 16th Community Day.

Shiny (3) =

April 15th
Shiny Latios became available in the Special Raid Week.

Shiny (1) =

April 16th
Shiny Igglybuff and Buneary were released on Eggstravaganza 2019.

Shiny (5) =

April 18th
Shiny Lapras and Shuckle became available at the start of Safari Zone in Sentosa.

Shiny (2) =

April 29th
Shiny Diglett family became available on Earth Day 2019. The Lake Guardians were released in wild.

Regular (3) =

Shiny (2) =

May 1st
Pattern 4 of Spinda was available in field research. Shiny Seel was released.

Regular (1) =

Shiny (2)=

May 7th
Shiny Aipom were released on Detective Pikachu Celebration.

Shiny (2) =

May 17th
Several Sinnoh-region Pokémon were released, featuring new Lure Modules as an evolution method.

Regular (23) =

Shiny (3)=

May 19th
Shiny Torchic became available on the 17th Community Day.

Shiny (3) =

May 21st
Shiny Bronzor were released on Extraordinary Raid Week.

Shiny (2) =

May 27th
Shiny Cresselia became available.

Shiny (1) =

June 4th
Shiny Onix, Lileep and Anorith were released on Adventure Week 2019.

Shiny (6) =

June 8th
Shiny Slakoth became available on the 18th Community Day.

Shiny (3) =

June 13th
Shiny Horsea became available with the start of Chicago Pokémon GO Fest 2019. Jirachi was available for attendees.

Regular (1) =

Shiny (3) =

June 28th
Shiny Alolan Rattata, Sandshrew, Vulpix, Diglett, Meowth, Geodude, Grimer and Exeggutor were released on 3rd Anniversary.

Shiny (16) =

June 29th
Shiny Raikou was released on Special Raid Challenge.

Shiny (1) =

July 1st
Deoxys Speed Forme became available to be battled exclusively in EX Raid Battle. Shiny pattern 8 of Spinda was released.

Regular (1) =

Shiny (1) =

July 4th
Shiny Nidoran♂ became available with the start of Dortmund Pokémon GO Fest 2019.

Shiny (3) =

July 10th
Armored Mewtwo became available as Raid Boss for the first time, rising up Kanto-region Pokédex to 170 distinct forms.

Regular (1) =

July 14th
Shiny Entei was released on Special Raid Challenge.

Shiny (1) =

July 21st
Shiny Mudkip became available on the 19th Community Day.

Shiny (3) =

July 25th
Shiny Ekans, Zubat, Koffing and Sneasel became available at the start of the Team GO Rocket Disruption.

Shiny (9) =

July 31st
Shiny Rayquaza became available.

Shiny (1) =

August 3rd
Shiny Ralts became available on the 20th Community Day.

Shiny (4) =

August 5th
Shiny Bonsly became available with the start of Gift Event.

Shiny (2) =

August 6th
Shiny Poliwag became available with the start of Yokohama Pokémon GO Fest 2019.

Shiny (4) =

August 17th
Shiny Suicune was released on Special Raid Challenge.

Shiny (1) =

August 23rd
Shiny Carvanha and Barboach were released on Water Festival 2019.

Shiny (4) =

September 1st
Shiny Electrike and pattern 3 of Spinda were released.

Shiny (3) =

September 2nd
Shiny Sentret and Gligar were released on Johto Journey.

Shiny (4) =

September 9th
Shiny Farfetch'd, Kangaskhan, Mr. Mime and Tauros were released on the second week of Ultra Bonus Event 2019.

Shiny (4) =

September 15th
Shiny Turtwig became available on the 21st Community Day.

Shiny (3) =

September 16th
Main release of Unova Region. 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 20th
Shiny Yanma became available at the start of Safari Zone in Montreal.

Shiny (2) =

September 23th
Shiny Altered Forme Giratina became available.

Shiny (1) =

September 26th
Shiny variants of Zangoose and Seviper became available and Mime Jr. was released with the beginning of World Tourism Day event.

Regular (1) =

Shiny (3) =

October 2nd
Shiny Oddish became available at the start of Safari Zone in New Taipei City.

Shiny (4) =

October 12th
Shiny Trapinch became available on the 22nd Community Day.

Shiny (3) =

October 17th
Darkrai and Yamask became available on the Halloween 2019 event.

Regular (3) =

Shiny (2) =

November 1st
Shiny Skarmory, Regirock, Regice and Registeel were released on A Colossal Discovery. Shiny pattern 1 of Spinda was also released.

Shiny (5) =

November 2nd
Regigigas was available in the Special Research – A Colossal Discovery.

Regular (1) =

November 4th
Cobalion became available as Raid Boss for the first time.

Regular (1) =

November 7th
Shiny Meowth was released on Team GO Rocket Leaders Disruption.

Shiny (2) =

November 16th
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 became available on the 23rd Community Day. Galarian Weezing became available to celebrate the release of Pokémon Sword and Shield.

Regular (1) =

Shiny (3) =

November 19th
Shiny Tentacool became available in the Supereffective Week.

Shiny (2) =

November 26th
Terrakion became available as Raid Boss for the first time. Unova Silver medal became achievable for the first time.

Regular (1) =

December 5th
Shiny Burmy became available during the Evolution Event.

Shiny (7) =

December 16th
Shiny Gible became available with the egg shuffle, without any prior announcement.

Shiny (3) =

December 17th
Virizion became available as Raid Boss for the first time.

Regular (1) =

December 24th
Cubchoo and Cryogonal were released during the Holiday event. Furthermore, shiny Snover and Stantler became available. For Stantler case, normal shiny version is only available after the event ended.

Regular (3) =

Shiny (3) =