The refurbishment of the Sphinx was part of a project to renovate and improve Egypt's famed Giza Pyramids and their surrounding areas.
The restoration became necessary after some cracks appeared on the northern part of the Sphinx in 2010, which were caused by wind, moisture and erosion.
Egyptian Minister of Antiquities and Heritage, Mamdouh el-Damaty, as well as Tourism Minister Hisham Zaazoua, took part in the inauguration ceremony in Giza.
The Great Sphinx of Giza is one of the largest single-stone statues on Earth.
It is 57 metres (260 feet) long, 6 metres (20 feet) wide, and 20 metres tall (65 feet) and was thought to have been built 45 centuries ago.