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