Of Greek or Welsh origin.
Yvain is associated with the Welsh name Owain, which is a form of the name Eugene, or, as sources mention, may probably derive from the Welsh word “eoghunn”, meaning “youth”.
When deriving from “Eugene”, Yvain means “polite”, “well born”, from the Greek word “ευγενής”, “eugenes”.
According to the Arthurian legend, Yvain was one of the Knights of the Round Table, son of King Urien and husband of the Lady of the Fountain.
Other forms of the name are Owain, Gene, Ywain, Eugenios, Yevgeny, Owen, Zhenya.