A misdemeanor court sentenced 138 people to two years in prison and fined them with 5,000 Egyptian pounds after being convicted for committing acts of violence and engaging in thuggery, said the state-owned news agency.
The defendants, who support the Muslim Brotherhood, were arrested in Cairo's Bab al-Sharia district where they clashed with street vendors and residents of the area, according to MENA.
They are also accused of setting fire to some shops during armed marches that were staged near Ramsis Square in support of deposed President Mohamed Mursi last July, which left tens of people wounded.
Violent clashes have been resurfacing since the military's ouster of Mursi, who hails from the Brotherhood, after mass protests against his rule.
The violence usually erupts after confrontations between security forces and supporters of Mursi that protest against what they call a "coup against legitimacy".