The blues mainly, but sometimes the citizens but not all that often these days. Also, city, but that's obvious.
The Citizens. City or The Blues.
in eterna city
Eterna City I think
He is in a building just in front of Castelia City's northern exit.
you can nickname your Pokemon in eterna city, located in a house on the right side of the pokemart, when you enter you'll find an old man
In the large building in Eterna City on the first floor. He is the old man. Remember, you can't change the nickname of a traded Pokemon.
The Eternal City or The City of Fountains is Rome's nickname.
Nashville's nickname is "Music City".
in the slateport city u find a old man change nick in Pokemon
San Antonio, Texas acquired the nickname of Alamo City!
the name rater or "nickname man" is in lavender town.
his nickname was interchangeable man
The Name Rater is in Slateport City, in the building to the left of the Pokemon Center.