The Sinnoh region represents the fourth generation of Pokémon, and despite all the new features and the Hokkaido-like setting, the core mechanic of version exclusives remains. That means there are Pokémon unique to Diamond that you cannot get in Pearl, and vice versa. If you’ve gotta catch ’em all, you will need to trade with someone.
Here is a list of all version exclusives available in Pokémon Diamond, Pokémon Pearl, and Pokémon Platinum.
Pokémon Diamond Version Exclusives
| Pokémon | Icon |
| Aggron |  |
| Aron |  |
| Cranidos |  |
| Dewgong |  |
| Dialga |  |
| Honchkrow |  |
| Kecleon |  |
| Lairon |  |
| Larvitar |  |
| Mightyena |  |
| Murkrow |  |
| Poochyena |  |
| Pupitar |  |
| Rampardos |  |
| Scizor |  |
| Scyther |  |
| Seel |  |
| Skuntank |  |
| Stunky |  |
| Tyranitar |  |
Pokémon Pearl Version Exclusives
| Pokémon | Icon |
| Bagon |  |
| Bastiodon |  |
| Glameow |  |
| Houndoom |  |
| Houndour |  |
| Misdreavus |  |
| Mismagius |  |
| Palkia |  |
| Pinsir |  |
| Purugly |  |
| Salamence |  |
| Sealeo |  |
| Sheildon |  |
| Shelgon |  |
| Slowbro |  |
| Slowking |  |
| Slowpoke |  |
| Spheal |  |
| Stantler |  |
| Walrein |  |
Pokémon Platinum Version Exclusives
| Pokémon | Icon |
| Articuno |  |
| Giratina |  |
| Moltres |  |
| Regice |  |
| Regirock |  |
| Registeel |  |
| Rotom Cut |  |
| Rotom Frost |  |
| Rotom Heat |  |
| Rotom Spin |  |
| Rotom Wash |  |
| Shaymin |  |
| Tangela |  |
| Tangrowth |  |
| Tropius |  |
| Zapdos |  |
Pokémon Diamond and Pokémon Pearl are role-playing games developed by Game Freak and initially released in 2006 for the Nintendo DS. A third version, Pokémon Platinum, was initially released in 2008 for the same system. Finally, enhanced remakes known as Pokémon Brilliant Diamond and Pokémon Shining Pearl were released worldwide in 2021 for the Nintendo Switch.