Helga (derived from Old Norse heilagr - "holy", "blessed") is a female name, used mainly in Russia (Olya, Olenka, or Olechka), Ukraine (Ольга), Scandinavia (Hege, Helle, Helge, Helga, Helka or Oili), Bulgaria, Serbia (Олга), Germany (Helga or Hella), Croatia, Poland (Olga), Hungary (Olga or Helga) Romania and Slovenia. The name was in use in England before the Norman Conquest, but appears to have died out afterwards. It was re-introduced to English-speaking nations in the 20th century from Germany and the Nordic countries.