The four-year-old child, who identifies as transgender, has begun to transition before their first day of kindergarten.
It is part of the Safe Schools program and they hope to complete the full gender transformation by next year.
The unidentified child is the youngest Australian on record changing their gender, as hundreds of other children and their parents have sought advice from the gender dysphoria unit.
The New South Wales government has revealed there are a number of children in the state’s schools transitioning their gender.
“We have a number of students who are going through gender transition in our schools, with the youngest being a four-year-old at the moment,” Education Department deputy secretary of school operations Gregory Prior told a budget estimates hearing probing the Safe Schools program yesterday.
“Without breaching privacy, we have a four-year-old who is transitioning to kindergarten next year who has identified as transgender.
“The Safe Schools is only one resource that can be used from a variety of resources in how we would support that family, student and school to accommodate a child going through transition.”
The subject has divided opinions among child psychology and gender dysphoria experts.
Some have argued it is entirely appropriate for young children to begin gender transitions, while it has drawn criticism from others insisting four years old was “simply too young”.