Heliopolis was an early 20th century suburb outside Cairo, Egypt, which has since merged with Cairo and is administratively divided into the districts of Masr El Gedida and El Nozha in the Eastern Area.

Heliopolis was a major city of ancient Egypt. It was the capital of the 13th or Heliopolite Nome of Lower Egypt and a major religious centre. It is now located in Ayn Shams, a northeastern district of Cairo.