Gym Leader

A Gym Leader (Japanese: ジムリーダー Gym Leader) is the highest ranking member of a Pokémon Gym. The main job of a Gym Leader is to test Trainers and their Pokémon so that they are strong and resourceful enough to compete against the Elite Four in the games or the Pokémon League in the anime. If a Trainer defeats a Gym Leader in battle, then the Trainer earns that Gym's Badge. Once a trainer has earned 8 badges from a region, he or she is able to compete against that region's Elite Four or Pokémon League.

A Gym Leader's job is not just to test upcoming Trainers. They must oversee how their respective gym is run and to maintain it. Great care must be taken to make sure that their gym reflects the best environment for the Pokémon type and playing style of choice. In the games, Trainers must overcome various obstacles and challenges from other Trainers before they can challenge the Leader. Gym Leaders may also be involved in other activities when they are not battling other Trainers, usually something to do with their town's particular attraction or landmark.

It has not exactly been made clear how Gym Leaders attain this position, but it appears that it varies for each gym. Some of them founded their gym and are self-appointed, others appear to be passed on through families, while a few are chosen by the other members of the gym.

Although similar in nature, Frontier Brains are not considered Gym Leaders and are thus not included in this list.

Indigo League

Generation I and III

Indigo League
Generations I and III		Region: Kanto
Gym Leader Japanese	Location Japanese	Type	Badge
{{{size}}} Brock タケシ Takeshi	Pewter City ニビシティ Nibi City	Rock	Boulder Badge
{{{size}}} Misty カスミ Kasumi	Cerulean City ハナダシティ Hanada City	Water	Cascade Badge
{{{size}}} Lt. Surge マチス Matis	Vermillion City クチバシティ Kuchiba City	Electric	Thunder Badge
{{{size}}} Erika エリカ Erika	Celadon City タマムシシティ Tamamushi City	Grass	Rainbow Badge
{{{size}}} Koga キョウ Kyō	Fuchsia City セキチクシティ Sekichiku City	Poison	Soul Badge
{{{size}}} Sabrina ナツメ Natsume	Saffron City ヤマブキシティ Yamabuki City	Psychic	Marsh Badge
{{{size}}} Blaine カツラ Katsura	Cinnabar Island グレンじま Guren Island	Fire	Volcano Badge
{{{size}}} Giovanni サカキ Sakaki	Viridian City トキワシティ Tokiwa City	Ground	Earth Badge

Generation II

Indigo League
Generation II		Region: Kanto
Gym Leader Japanese	Location Japanese	Type	Badge
{{{size}}} Brock タケシ Takeshi	Pewter City ニビシティ Nibi City	Rock	Boulder Badge
{{{size}}} Misty カスミ Kasumi	Cerulean City ハナダシティ Hanada City	Water	Cascade Badge
{{{size}}} Lt. Surge マチス Matis	Vermillion City クチバシティ Kuchiba City	Electric	Thunder Badge
{{{size}}} Erika エリカ Erika	Celadon City タマムシシティ Tamamushi City	Grass	Rainbow Badge
{{{size}}} Janine アンズ Anzu	Fuchsia City セキチクシティ Sekichiku City	Poison	Soul Badge
{{{size}}} Sabrina ナツメ Natsume	Saffron City ヤマブキシティ Yamabuki City	Psychic	Marsh Badge
{{{size}}} Blaine カツラ Katsura	Cinnabar Island グレンじま Guren Island	Fire	Volcano Badge
{{{size}}} Blue グリーン Green	Viridian City トキワシティ Tokiwa City	Various	Earth Badge

Orange League

Orange League
Anime-exclusive		Region: Orange Archipelago
Crew Member Japanese	Location Japanese	Challenge	Prize
File:Cissy.jpg Cissy アツミ Atsumi	Mikan Island ナツカン島 Natsukan Island	Water Gun target test Surfing race	File:Coraleyebadge.png Coral-Eye Badge
File:Danny.jpg Danny ダン Dan	Navel Island ネーブル島 Navel Island	Climb mountain (to qualify) Freeze a geyser race Build a Toboggan race Toboggan race	File:Searubybadge.png Sea Ruby Badge
File:Rudy-pose.jpg Rudy ジギー Jigī	Trovita Island ユズ島 Yuzu Island	Target test Same-type Pokémon battle	File:Spikeshellbadge.png Spike Shell Badge
File:Luana.jpg Luana ルリコ Ruriko	Kumquat Island リュウチン島 Ryūchin Island	Double battle	File:Jadestarbadge.png Jade Star Badge
File:Orange-league-drake.jpg Drake ユウジ Yūji	Pummelo Island カンキツ島 Kankitsu Island	Six-on-six battle	Winner's Trophy Honor at the Palace of Victory

Johto League

Johto League
Generation II		Region: Johto
Gym Leader Japanese	Location Japanese	Type	Badge
{{{size}}} Falkner ハヤト Hayato	Violet City キキョウシティ Kikyō City	Flying	Zephyr Badge
{{{size}}} Bugsy ツクシ Tsukushi	Azalea Town ヒワダタウン Hiwada Town	Bug	Hive Badge
{{{size}}} Whitney アカネ Akane	Goldenrod City コガネシティ Kogane City	Normal	Plain Badge
{{{size}}} Morty マツバ Matsuba	Ecruteak City エンジュシティ Enju City	Ghost	Fog Badge
{{{size}}} Chuck シジマ Shijima	Cianwood City タンバシティ Tanba City	Fighting	Storm Badge
{{{size}}} Jasmine ミカン Mikan	Olivine City アサギシティ Asagi City	Steel	Mineral Badge
{{{size}}} Pryce ヤナギ Yanagi	Mahogany Town チョウジタウン Chōji Town	Ice	Glacier Badge
{{{size}}} Clair イブキ Ibuki	Blackthorn City フスベシティ Fusube City	Dragon	Rising Badge

Hoenn League

Hoenn League
Generation III			Region: Hoenn
Gym Leader Japanese		Location Japanese	Type	Badge
{{{size}}} Roxanne ツツジ Tsutsuji		Rustboro City カナズミシティ Kanazumi City	Rock	Stone Badge
{{{size}}} Brawly トウキ Tōki		Dewford Island ムロタウン Muro Town	Fighting	Knuckle Badge
{{{size}}} Wattson テッセン Tessen		Mauville City キンセツシティ Kinsetsu City	Electric	Dynamo Badge
{{{size}}} Flannery アスナ Asuna		Lavaridge Town フエンタウン Fuen Town	Fire	Heat Badge
{{{size}}} Norman センリ Senri		Petalburg City トウカシティ Tōka City	Normal	Balance Badge
{{{size}}} Winona ナギ Nagi		Fortree City ヒワマキシティ Hiwamaki City	Flying	Feather Badge
{{{size}}} Tate and Liza フウとラン Fū and Ran		Mosdeep City トクサネシティ Tokusane City	Psychic	Mind Badge
File:SpriteWallace.png Wallace ミクリ Mikuri *	File:SpriteJuan.png Juan アダン Adan *	Sootopolis City ルネシティ Rune City	Water	Rain Badge

Sinnoh League

Sinnoh League
Generation IV		Region: Sinnoh
Gym Leader Japanese	Location Japanese	Type	Badge
Roark ヒョウタ Hyouta	Oreburgh City クロガネシティ Kurogane City	Rock	Coal Badge
Gardenia ナタネ Natane	Eterna City ハクタイシティ Hakutai City	Grass	Forest Badge
Maylene スモモ Sumomo	Veilstone City トバリシティ Tobari City	Fighting	Cobble Badge
Crasher Wake マキシマム仮面 Maximum Mask	Pastoria City ノモセシティ Nomose City	Water	Fen Badge
Fantina メリッサ Melissa	Hearthome City ヨスガシティ Yosuga City	Ghost	Relic Badge
Byron トウガン Tougan	Canalave City ミオシティ Mio City	Steel	Mine Badge
Candice スズナ Suzuna	Snowpoint City キッサキシティ Kissaki City	Ice	Icicle Badge
Volkner デンジ Denzi	Sunyshore City ナギサシティ Nagisa City	Electric	Beacon Badge

Trivia

• Every Gym Leader that specializes in Template:Type2, Template:Type2, and Template:Type2 Pokémon uses Geodude, Gengar, and Steelix respectively in battle.
• Johto is the only region that did not repeat types from gyms released in previous generations. This is likely due to the fact that there had been only eight gyms before, while there were 17 different types.
• Even though there are 32 known gyms in the games, there has not yet been a gym specializing in Template:Type2 Pokémon, although there have been two Elite Four members, Karen and Sidney. Only Poison-, Ground-, Bug-, and Template:Type2 gyms are not located in multiple regions. Each of the twelve other types has been repeated at least once, and Rock-, Water-, Electric-, and Template:Type2 gyms appear in three of the four regions.
• There have been more male Gym Leaders than female ones in every region except for Sinnoh, where there are four of each. Kanto also has four of each in Generation II.
• Even though they were called Leaders in Generation I, this title did not appear in battle until Generation II.
• The only Gym Leaders so far whose parents have been seen in the anime are Brock, Sabrina, Tate, Liza, and Roark. They all train either Template:Type2 or Template:Type2 Pokémon.
  • Of the five, Roark is the only one who has a known parent in the games.
• In the anime, Gym Leaders seem to be forbidden from switching their Pokémon. Those that Ash encountered before Blaine did switch; however, since Ash's match against Blaine in Riddle Me This, Gym Leaders have not switched out their Pokémon. In the games, they may switch their Pokémon as often as any other Trainer.
• For DP009, Professor Oak's lecture is about Gym Leaders. He writes this Pokémon senryū about them: ジムリーダー　いのちをかけて　かかってこい Jimu Rīdā / Inochi o kakete / Kakatte koi "Gym Leader, put your life on the line and challenge me"