Interim President Adly Mansour promoted Defense Minister Abdel Fattah al-Sisi from lieutenant general to field marshal, a presidential statement said on Monday.
The decision comes amid predictions that Sisi will resign soon in order to run for president in the upcoming elections.
On Sunday, Mansour decided that Egypt will hold presidential elections before the parliamentary elections.
The exact dates of the presidential elections have yet to be determined.
Edited translation from Al-Masry Al-Youm