The Children's Rights Alliance says it would be a 'major setback' if the Department of Children and Youth Affairs was scrapped.
It follows reports it will be disbanded when the next government is formed.
Sixty youth organisations are calling on political leaders to retain it.
Tanya Ward, the chief executive of the Children's Rights Alliance, says it would be a disaster if it was scrapped.
"I think it will be a major setback if we lose the department.
"If you think about what happened for children and these issues before the department was established, they often got sidelined in the big agenda departments.
"Children's issues were dealt with by the Department of Health, for example, and it presided over a broken child protection system, and years of failure of reform to be quite honest."
