Nyuserre Ini (also spelt Niuserre Ini or Neuserre Ini; in Greek known as ´Ραθούρης) was an Ancient Egyptian pharaoh, the sixth ruler of the Fifth Dynasty during the Old Kingdom period. He is frequently given a reign of 24 or 25 years and is dated from ca. 2445 BC to 2421 BC. His prenomen, Nyuserre, means "Possessed of Re's Power". Nyuserre was the younger son of pharaoh Neferirkare Kakai by Queen Khentkaus II, and the brother of the short-lived king Neferefre.