The court convicted the defendants of joining a terrorist group, possessing explosive charges, and sabotaging state properties.
The verdict was issued after the mufti, the authority which issues religious edicts, approved the court's death penalties in a non-binding but legally required opinion as per the country's penal code.
The ruling can be appealed within 60 days before the Court of Cassation.
The defendants, who were arrested in 2014 in the Nile Delta governorate of Sharqiya, were charged with forming a terrorist cell of 30 members with the aim of disrupting order, carrying out terrorist operations, vandalising police vehicles, murdering two policemen, and attempting to kill others.
The defendants were found in possession of ammunitions, explosives, and publications calling for the suspension of the country's constitution, and preventing state institutions from doing their duties.