Police are appealing for information to find missing Wiktoria Jalkiewicz from Castleford.
Wiktoria, 16, was last in touch with her family on Tuesday evening and police have concerns for her safety.
She is described as white, slim and as having long blonde hair.
Detective Inspector Dan Tillett of Wakefield District CID, said: “We do have concerns for Wiktoria as she is vulnerable and would like to speak to anyone who can help us find her.
“It is possible she is in the Wakefield are and I would ask Wiktoria or anyone who has seen her to contact us.
“Information can be given to Wakefield District CID on 101 referencing police log 0009 of July 27.”