names do not translate if you want to know how to write it ask:- how do i write "name" in japanese? said the same
If you're referring to Wilder as a name (e.g., Gene Wilder), it would be pronounced the same with a Japanese accent and spelled ワイルダー (wairudaa).
Japanese American
Gene Cody's birth name is Gene Eubanks.
Gene Summers's birth name is Deborah Gene Bloxom.
Gene Biscontini's birth name is Gene Daniel Biscontini.
Gene Rhoden's birth name is Gene David Rhoden.
Gene Tierney's birth name is Gene Eliza Tierney.
Gene Mauch's birth name is Gene William Mauch.
Gene Mruczkowski's birth name is Gene Vincent Mruczkowski.
Gene Lamont's birth name is Gene William Lamont.
Gene Fallaize's birth name is Gene Peter Walker.
Gene Wolfe's birth name is Gene Rodman Wolfe.