In a rare interview, Charlize Theron has spoken about learning her child is transgender.

In a rare public interview, Charlize Theron has spoken for the first time about the moment she learnt her eldest child is transgender.

The Oscar-winning actress best known for roles in movies including Monster, The Italian Job and North Country said Jackson told her she identifies as female four years ago.

“Yes, I thought [Jackson] was a boy, too… Until she looked at me when she was three years old and said: ‘I am not a boy!’” the South African-born actress told the Daily Mail of her daughter Jackson, now aged seven.

Charlize Theron and Jackson in 2015. Image: Getty.

"So there you go. I have two beautiful daughters who, just like any parent, I want to protect and I want to see thrive."

The 43-year-old actress is raising Jackson as female, along with her younger daughter August, saying "who they want to be is not for me to decide".

"They were born who they are and exactly where in the world both of them get to find themselves as they grow up, and who they want to be, is not for me to decide," she said.

"My job as a parent is to celebrate them and to love them and to make sure that they have everything they need in order to be what they want to be, and I will do everything in my power for my kids to have that right and to be protected within that."

Mia Freedman interviewed transgender advocate Georgie Stone about what it's like growing up feeling like you're in the wrong body on No Filter below. Post continues after audio.

Theron adopted Jackson in March, 2012, and August in July, 2015. Speaking to People in 2018, Theron said adoption was always a priority for her.

"Even when I was in relationships, I was always honest with my partners, that adoption was how my family would look one day. This was definitely not a second option for me. It was always my first."

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