Rugged but gentle, Rhys is the traditional Welsh spelling of this name, which can also be anglicized as Reese or Reece. Up until 2010, Reese was the preferred spelling in the US, perhaps because parents were concerned about mispronunciation. However, Rhys has since taken over for boys and is now used twice as often as Reese.

The sassy, steel magnolia appeal of Oscar-winning Reese (born Laura Jeanne—Reese is her mother's maiden name) Witherspoon has single-handedly propelled this formerly boys’ name into girls' popularity.

Less than ten percent of the babies named Rhys are girls, whereas Reese is given five times more often to girls than to boys, thanks to Ms. Witherspoon. It's a sleek and attractive name, but one that benefits from two accepted spellings that help clarify its gender identity.