Ankhkheperure-Merit-Neferkheperure/Waenre/Aten Neferneferuaten (Ancient Egyptian: nfr-nfrw-jtn), or "Neferneferuaten", is the name of a queen regnant ('female king') of ancient Egypt who reigned in her own right near the end of the Amarna Period during the Eighteenth Dynasty. Her name features feminine gender traces, and one of her epithets was Akhet-en-hyes ("Beneficial for her husband"). This epithet also features in one version of her nomen (birth name) cartouche. (See Ancient Egyptian royal titulary.) The name Neferneferuaten translates as either "(“Perfect/Beautiful is the perfection/beauty of Aten”)
She is to be distinguished from the male king Smenkhkare, with whom she shared the prenomen (throne name) Ankhkheperure. However, Smenkhkare was a male king who was married to Akhenaten and Nefertiti's daughter Meritaten but his prenomen bore no additional epithets and he disappears from the historical records shortly after Year 12 of Akhenaten.