The 13-year-old girl who racially abused Sydney Swans star Adam Goodes has apologised for calling him an "ape".

Goodes revealed on Twitter on Saturday afternoon he had spoken to the teenage Collingwood supporter, who abused him in the final quarter of the Swans' 47-point win against the Magpies at the MCG on Friday night.

"Just received a phone call from a young girl apologising for her actions. Let's support her please," Goodes wrote.

On Saturday, the girl said she was sorry for her comment.