Sixteen minors have been referred to court on charges of rioting and attending unauthorised pro-Mohamed Morsi protests.
They were arrested at various demonstrations in December and January, according to defence lawyer Hussein Farouk.
Their ages range from 15 to 17 years old. Four were arrested in the Azbakiya district of Cairo, 12 others in Qasr El-Nil.
The trials will take place in a juvenile court.
Since Morsi's ouster in July 2013, his supporters have been staging frequent protests demanding his reinstatement. They have often descended into bloody clashes with security forces or civilian opponents.
The confrontations escalated to a new level in November 2013 with the issuance of a new law which only permitted protests with police authorisation, and the designation of Morsi's Muslim Brotherhood as a terrorist organisation in December.
Thousands of Brotherhood supporters have been killed or detained since Morsi's ouster.