Defenders Kwanda Mngonyama and Rivaldo Coetzee have been appointed vice captains.
Dolly led the squad to Olympic qualification when he wore the armband at the CAF Under-23 Africa Cup of Nations tournament held in Senegal in 2015, with Mngonyama as his second in command.
Coetzee was given the responsibility at the Cosafa Castle Cup tournament held in Namibia recently, which South Africa won.
Head coach da Gama says he’s delighted with the abundance of leaders in his squad.
"Dolly has grown as a player in the past few months, and don’t forget he captained the side through the qualifiers in Senegal late last year,” the coach said. “When we started with preparations of the Olympic qualification phase, Kwanda Mngonyama was the captain, while Rivaldo Coetzee led the Cosafa Castle Cup squad. This shows we have many leaders in the squad but only one player can wear the armband on the day.”
Da Gama also spoke of Itumeleng Khune’s influence, and the array of leadership abilities in the squad.
"It is for those reasons that we believe these three are more suitable and capable of leading the team,” he continued. “We are also fortunate that Bafana Bafana captain Itumeleng Khune is with us - a clear indication of the abundance of leaders we have in this team, but the most important thing that players need to remember is that they are all captains, on and off the field, and all need to be exemplary."
South Africa face hosts Brazil in their opening Olympic match on Thursday, 4 August, with kick off at the Mane Garrincha Stadium at 9pm South African time.