I do not know if you can rename hacked* Pokemon.
*I do not condone hacking as it leads to horrible and game crashing glitches.
He should be found in the same place as he is found in Platinum and that is in the condominium to the right of the Pokemart in Eterna City :)
The name changer guy is in eterna city next to the pokemart
Lavender Town
Yes, he lives on the mirage rock which is south of lilycove
Yes, Pokemon Diamond and Pearl's region name is Sinnoh Region.
Pokemon diamond Pokemon diamond Pokemon diamond
The name changer guy is in eterna city next to the pokemart
In Jubilife City
Lavender Town.
lavendar town.
the name rater is in goldenrod city to the left of the third gym (Whitney)
In lavender town
Slateport in front of the contest place
The Name Rater is in Eterna City, on the right of the PokeMart.
The Name Rater is in Eterna City. It is North of Oreburgh City, and West of Celestic town. Remember that you can only change the names of Pokemon that you have named yourself. Names given by people that you trade with are unchangable.
In eterna city he is a old man in an apartment building he claims he is a name rater select the Pokemon to rate the name then he asks you if you want to change it
On every Pokemon game, there is a name changer. He will allow you to change your Pokemon's name, either with a small fee, or free of charge.
Lavender Town