Not every Pokémon in Alola is caught in the grass. Some are given to you, others are traded for a specific Pokémon in a Pokémon Center, a few are revived from a fossil, and some appear only once. Here is the list, drawn from the location pages.

🎁Gifted Pokémon

Your starter Pokémon, in Iki Town; the Egg from the Nursery at Paniola Ranch; Type: Null at Aether Paradise and Porygon at the Aether House after the League; Cosmog at the Lake of the Sunne/Moone; an Aerodactyl in Seafolk Village. The table details every gift.

PokémonLocationHowVersions
PorygonAether HouseGiven, after beating the Alola League · No. 30Both
CosmogLake of the MooneGiven · No. 5Moon
CosmogLake of the SunneGiven · No. 5Sun
Type: NullAether ParadiseGiven · No. 40Both
AerodactylSeafolk VillageGiven · No. 40Both

🔁In-game trades

In several Pokémon Centers, a Trainer offers to trade one Pokémon for another. Some of them hold a precious item: the Poliwhirl in Konikoni City carries a Waterium Z, the Alolan Graveler in Tapu Village a Rockium Z, and the Steenee in Seafolk Village a Grassium Z.

PokémonLocationHowVersions
TalonflamePoni GauntletTrade (in front of the Battle Tree entrance) · No. 59Both
PoliwhirlKonikoni CityTrade for Zubat · No. 22Both
HappinyMalie CityTrade for Pancham · No. 27Both
MachopRoute 2 (area 3)Trade for a Spearow · No. 9Both
BounsweetRoute 5Trade for Lillipup · No. 16Both
SteeneeSeafolk VillageTrade for a Granbull · No. 43Both
Alolan GravelerTapu VillageTrade for Haunter · No. 32Both

🦴Fossils

The fossil restoration center on Route 8 revives, at level 15, the fossils of ten Pokémon from earlier generations: Omanyte, Kabuto, Lileep, Anorith, Cranidos, Shieldon, Tirtouga, Archen, Tyrunt and Amaura. Aerodactyl, for its part, is given to you in Seafolk Village.

PokémonLocationHowVersions
OmanyteRoute 8Fossils · No. 15Both
KabutoRoute 8Fossils · No. 15Both
LileepRoute 8Fossils · No. 15Both
AnorithRoute 8Fossils · No. 15Both
CranidosRoute 8Fossils · No. 15Both
ShieldonRoute 8Fossils · No. 15Both
TirtougaRoute 8Fossils · No. 15Both
ArchenRoute 8Fossils · No. 15Both
TyruntRoute 8Fossils · No. 15Both
AmauraRoute 8Fossils · No. 15Both

📡The Island Scan

After accumulating 100 points with the QR Scan, you can start an Island Scan: a Pokémon from elsewhere, absent from the Alola Pokédex, appears for one hour on the island where you are. It depends on the island and the day of the week, and often knows a move it normally only learns through breeding.

DayMelemele IslandAkala IslandUla’ula IslandPoni Island
MondayTotodileSeaward CaveSphealRoute 7SwinubTapu VillageConkeldurrPoni Plains
TuesdayDeinoTen Carat Hill (inside the cave)LuxioRoute 8DuosionRoute 16TogekissPoni Gauntlet
WednesdayHorseaKala’e BayHonedgeAkala OutskirtsRoseliaUla’ula MeadowLeavannyPoni Meadow
ThursdayKlinkHau’oli City (shopping area)VenipedeRoute 4StaraviaRoute 10SerperiorExeggutor Island
FridayChikoritaRoute 2 (area 3)BellsproutRoute 5 (area 1)VigorothRoute 11SamurottPoni Wilds
SaturdayLitwickHau’oli CemeteryMarillBrooklet Hill (area 2)AxewMount HokulaniEmboarAncient Poni Path
SundayCyndaquilRoute 3 (area 2)GothitaRoute 6 (area 2)RhyhornBlush MountainEelektrossPoni Grove

The details of how it works are in our guide QR Scan and Island Scan.

⭐Unique encounters

Legendary Pokémon, the guardian deities and a few Pokémon you meet only once: the giant Alolan Exeggutor of Exeggutor Island, for example, or the Ultra Beasts after the League.

PokémonLocationHowVersions
LunalaAltar of the MooneEncounter · No. 55Moon
SolgaleoAltar of the SunneEncounter · No. 55Sun
RowletIki TownSpecial (starter Pokémon) · No. 5Both
LittenIki TownSpecial (starter Pokémon) · No. 5Both
PopplioIki TownSpecial (starter Pokémon) · No. 5Both
ZygardeRoute 16Special (via the Zygarde Cell quest) · No. 50 (Before the League, After the League)Both
Tapu FiniRuins of HopeEncounter · No. 60Both
Tapu BuluRuins of AbundanceEncounter · No. 60Both
Tapu LeleRuins of LifeEncounter · No. 60Both
Tapu KokoRuins of ConflictEncounter · No. 60Both
NihilegoDiglett’s TunnelSpecial · No. 55Both
Alolan ExeggutorExeggutor IslandSpecial (first arrival) · No. 40Both