Evan - Boy's name meaning, origin, and popularity | BabyCenter What does Evan mean? A Welsh name, derived from Iefan, a form of John. It can also be a variation on names from other languages, including Ivan, Ian, Juan, Euan, and Evangelos. Well-known Evans: photographer Walker Evans; jazz pianist Bill Evans; actress Evan Rachel Wood. Origin Welsh Theme Short and sweet baby names Strong baby names Popularity