The Alola Region Pokedex Consists of exactly 403 Different Pokemon Species. It is separated into four different sections according to each island in the Alola Region: Melemele Island, Akala Island, Ula'ula Island and Poni Island. Since your first adventure through Alola, the Pokedex has grown exponentially, featuring over a hundred New Pokemon Entries.
Alola Region Pokedex.
1. Rowlet.
2. Daritx.
3. Decidueye.
4. Litten.
5. Torracat.
6. Incineroar.
7. Popplio.
8. Brionne.
9. Primarina.
10. Pikipek.
11. Trumbeak.
12. Toucannon.
13. Yungoos.
14. Gumshoos.
15. Rattata.
16. Raticate.
17. Caterpie.
18. Metapod.
19. Butterfree.
20. Ledyba.
21. Ledian.
22. Spinarak.
23. Ariados.
24. Buneary.
25. Lopunny.
26. Inkay.
27. Malamar.
28. Zorua.
29. Zoroark.
30. Furfrou.
31. Pichu.
32. Pikachu.
33. Raichu.
34. Grubbin.
35. Charjabug.
36. Vikavolt.
37. Bonsly.
38. Sudowoodo.
39. Happiny.
40. Chansey.
41. Blissey.
42. Munchlax.
43. Snorlax.
44. Slowpoke.
45. Slowbro.
46. Slowking.
47. Wingull.
48. Pelipper.
49. Abra.
50. Kadabra.
51. Alakazam.
52. Meowth.
53. Persian.
54. Magnemite.
55. Magneton.
56. Magnezone.
57. Grimer.
58. Muk.
59. Mime Jr..
60. Mr. Mime.
61. Ekans.
62. Arbok.
63. Dunsparce.
64. Growlithe.
65. Arcanine.
66. Drowzee.
67. Hypno.
68. Makuhita.
69. Hariyama.
70. Smeargle.
71. Crabrawler.
72. Crabominable.
73. Gastly.
74. Haunter.
75. Gengar.
76. Drifloon.
77. Drifblim.
78. Murkrow.
79. Honchkrow.
80. Zubat.
81. Golbat.
82. Crobat.
83. Noibat.
84. Noivern.
85. Diglett.
86. Dugtrio.
87. Spearow.
88. Fearow.
89. Rufflet.
90. Braviary.
91. Vullaby.
92. Mandibuzz.
93. Mankey.
94. Primeape.
95. Delibird.
96. Hawlucha.
97. Oricorio.
98. Cutiefly.
99. Ribombee.
100. Flabebe.
101. Floette.
102. Florges.
103. Petilil.
104. Lilligant.
105. Cottonee.
106. Whimsicott.
107. Psyduck.
108. Golduck.
109. Smoochum.
110. Jynx.
111. Magikarp.
112. Gyarados.
113. Barboach.
114. Whiscash.
115. Seel.
116. Dewgong.
117. Machop.
118. Machoke.
119. Machamp.
120. Roggenrola.
121. Boldore.
122. Gigalith.
123. Carbink.
124. Sableye.
125. Mawile.
126. Rockruff.
127. Lycanroc.
128. Spinda.
129. Tentacool.
130. Tentacruel.
131. Finneon.
132. Lumineon.
133. Wishwashi.
134. Luvdisc.
135. Corsola.
136. Mareanie.
137. Toxapex.
138. Shellder.
139. Cloyster.
140. Clamperl.
141. Huntail.
142. Gorebyss.
143. Remoraid.
144. Octillery.
145. Mantyke.
146. Mantine.
147. Bagon.
148. Shelgon.
149. Salamence.
150. Lillipup.
151. Herdier.
152. Stoutland.
153. Eevee.
154. Vaporeon.
155. Jolteon.
156. Flareon.
157. Espeon.
158. Umbreon.
159. Leafeon.
160. Glaceon.
161. Sylveon.
162. Mareep.
163. Flaaffy.
164. Ampharos.
165. Mudbray.
166. Mudsdale.
167. Igglybuff.
168. Jigglypuff.
169. Wigglytuff.
170. Tauros.
171. Miltank.
172. Surskit.
173. Masquerain.
174. Dewpider.
175. Araquanid.
176. Fomantis.
177. Lurantis.
178. Morelull.
179. Shiinotic.
180. Paras.
181. Parasect.
182. Poliwag.
183. Poliwhirl.
184. Poliwrath.
185. Politoed.
186. Goldeen.
187. Seaking.
188. Casculin.
189. Feebas.
190. Milotic.
191. Alomomola.
192. Fletchling.
193. Fletchinder.
194. Talonflame.
195. Salandit.
196. Salazzle.
197. Cubone.
198. Marowak.
199. Kangaskhan.
200. Magby.
201. Magmar.
202. Magmortar.
203. Larvesta.
204. Volcarona.
205. Stufful.
206. Bewear.
207. Bounsweet.
208. Steenee.
209. Tsareena.
210. Comfey.
211. Pinsir.
212. Hoothoot.
213. Noctowl.
214. Kecleon.
215. Oranguru.
216. Passimian.
217. Goomy.
218. Sliggoo.
219. Goodra.
220. Castform.
221. Wimpod.
222. Golisopod.
223. Staryu.
224. Starmie.
225. Sandygast.
226. Palossand.
227. Omanyte.
228. Omastar.
229. Kabuto.
230. Kabutops.
231. Lileep.
232. Cradily.
233. Anorith.
234. Armaldo.
235. Cranidos.
236. Rampardos.
237. Shieldon.
238. Blastiodon.
239. Archen.
240. Archeops.
241. Tirtouga.
242. Carracosta.
243. Tyrunt.
244. Tyrantrum.
245. Amaura.
246. Aurorus.
247. Larvitar.
248. Pupitar.
249. Tyranitar.
250. Phantump.
251. Trevenant.
252. Natu.
253. Xatu.
254. Nosepass.
255. Probopass.
256. Pyukumuku.
257. Chinchou.
258. Lanturn.
259. Type: Null.
260. Silvally.
261. Poipole.
262. Naganadel.
263. Zygarde.
264. Trubbish.
265. Gardobor.
266. Minccino.
267. Cinccino.
268. Pineco.
269. Forretress.
270. Skarmory.
271. Ditto.
272. Cleffa.
273. Clefairy.
274. Clefable.
275. Elgyem.
276. Beheeyem.
277. Minior.
278. Beldum.
279. Metang.
280. Metagross.
281. Porygon.
282. Porygon 2.
283. Porygon Z.
284. Panchem.
285. Pangoro.
286. Komala.
287. Torkoal.
288. Turtonator.
289. Houndour.
290. Houndoom.
291. Dedenne.
292. Togedemaru.
293. Electrike.
294. Manectric.
295. Elekid.
296. Electabuzz.
297. Electivire.
298. Geodude.
299. Graveler.
300. Golem.
301. Sandile.
302. Krokorok.
303. Krookodile.
304. Trapinch.
305. Vibrava.
306. Flygon.
307. Gible.
308. Gabite.
309. Garchomp.
310. Baltoy.
311. Claydol.
312. Golett.
313. Golurk.
314. Klefki.
315. Mimikyu.
316. Shuppet.
317. Banette.
318. Frillish.
319. Jellicent.
320. Bruxish.
321. Drampa.
322. Absol.
323. Snnorunt.
324. Glalie.
325. Froslass.
326. Sneasel.
327. Weavile.
328. Sandshrew.
329. Sandslash.
330. Vulpix.
331. Ninetales.
332. Vanillite.
333. Vanillish.
334. Vanilluxe.
335. Scraggy.
336. Scrafty.
337. Pawniard.
338. Bisharp.
339. Snubbull.
340. Granbull.
341. Shellos.
342. Gastrodon.
343. Relicanth.
344. Dhelmise.
345. Carvanha.
346. Sharpedo.
347. Skrelp.
348. Dragalge.
349. Clauncher.
350. Clawitzer.
351. Wailmer.
352. Wailord.
353. Lapras.
354. Tropius.
355. Exeggcute.
356. Exeggutor.
357. Corphish.
358. Crawdaunt.
359. Mienfoo.
360. Mienshao.
361. Jangmo-o.
362. Hakamo-o.
363. Kommo-o.
364. Emolga.
365. Scyther.
366. Scizor.
367. Heracross.
368. Aipom.
369. Ambipom.
370. Litleo.
371. Pyroar.
372. Misdreavus.
373. Mismgaius.
374. Druddigon.
375. Lickitung.
376. Lickilicky.
377. Riolu.
378. Lucario.
379. Dratini.
380. Dragonair.
381. Dragonite.
382. Aerodactyl.
383. Tapu Koko.
384. Tapu Lele.
385. Tapu Bulu.
386. Tapu Fini.
387. Cosmog.
388. Cosmoem.
389. Solgaleo.
390. Lunala.
391. Nihilego.
392. Stakataka.
393. Blacephalon.
394. Buzzwole.
395. Pheromosa.
396. Xurkitree.
397. Celesteela.
398. Kartana.
399. Guzzlord.
400. Necrozma.
401. Magearna.
402. Marshadow.
403. Zeraora.