It's hoped that this would help politicians and other adults take the views and rights of children more seriously.
There is already a commissioner in Wales, and others are planned for Scotland and Northern Ireland.
But the government wants to see how well they work before appointing one in England.
Already, though, the Welsh commissioner has complained about problems such as the terrible state of school toilets.
The United Nations has also said it wants someone who will look after kids and said it was 'deeply concerned' that no position exists in England.