The Official Guide On Exclusive Pokemon

[Gweagle]

Diamond and Pearl:

Diamond:
Murkrow, Cranidos, Rampardos, Honchkrow, Stunky, Skuntank, Dialga

After National:
Seel, Dewgong, Scyther, Scizor, Larvitar, Pupitar, Tyranitar, Poochyena, Mightyena, Aron, Lairon, Aggron, Kecleon,

Pearl:
Misdreavus,Shieldon, Bastiodon, Mismagius, Glameow, Purugly, Palkia

After National:
Slowpoke, Slowbro, Pinsir, Slowking, Houndour, Houndoom, Stantler, Spheal, Sealeo, Walrein, Bagon, Shelgon, Salamence,

Nintendo Event & Mystery Gift exclusives
Manaphy, Darkrai, Shaymin, Arceus

I will do other games later. Please tell me about them.

[Liquidfired]

No I could get uknown before the National Dex you need to see that pokemon to get the National DEX

[Cooler]

For Pearl, put Pinsir under After National.

[Chaolin]

Oh, I forgot to announce that Manaphy will be given away at select Toys R Us stores on September 29. Since this is an exclusive pokemon thread, I thought I might mention that.

[Smockers]

There is one right here at Serebii.

http://www.serebii.net/diamondpearl/exclusives.shtml

[Thex478]

Under diamond put murkrow and honchkrow.

[Yellowtail]

Unown isn't an exclusive (take note that there's no K in Unown.)

[Ponchowinz]

No I could get uknown before the National Dex you need to see that pokemon to get the National DEX

Unknown is no Pokemon, he must have meant it was unknown to him.