Chloe Campbell has been missing from her home in Kilbirnie, North Ayrshire, since Thursday evening.
Police Scotland had issued a public appeal to help find Chloe Campbell, and the force said on Monday evening that the teenager had been traced.
The police thanked the public for their help.
Concern had been growing for the teenager, despite her going missing previously.
A confirmed sighting had been made of her at Glasgow Central on CCTV at around 12.15am on Friday.