A 14-year-old girl who was reported missing from Sydney's inner city has been found, police say.

The teenager from Kogarah was last spotted at Redfern Railway Station at 11:00am on Friday, police said.

The girl's family contacted police when she did not come home that day.

Officers launched an investigation into the disappearance of the girl and said they held concerns for her welfare due to her age.

She was found "safe and well" at 10:00am today at Wiley Park in Sydney's south-west, police said.