Magdelana Charciarek, 27, was last seen around 1pm on Wednesday, September, 30, leaving her family’s home in Cookson Street, Doncaster, where she said she was going to the town centre.
She has not been seen since and police, along with her family, are growing increasingly concerned for her safety.
Superintendent Natalie Shaw, from Doncaster District Police, said: “Since Magdelana was reported missing last week we have been working with her family and have carried out a number of searches in the local area as well as issuing a media appeal.
“At this stage we have not been able to trace any further confirmed sightings of Magdelana and as you can imagine our fears for her safety are growing with each passing hour.
“We don’t believe that Magdelana has access to a bank account or mobile phone and at the time she was last seen is thought to have had around £10 in her possession.
“Magdelana speaks some English and has travelled previously but her disappearance is out of character and it’s vital we trace her whereabouts as her family are extremely concerned.
“There is a strong Polish community in Doncaster and I would appeal to members of that community to come forward if they have any information surrounding Magdelana’s disappearance.
“I would also ask anyone living or working in Doncaster to look at the pictures of Magdelana and contact us if you’ve seen anyone matching her description since last Wednesday afternoon.”
Magdelana is described as white around 5ft 6ins tall, slim build, with blue eyes and long light brown hair.
She was last seen wearing a grey coat with blue skinny jeans, a blue t-shirt, a long red scarf and carrying a black coloured leather handbag. Magdelana also wears glasses.
If you see Magdelana, or know where she might be, please call South Yorkshire Police via: 101 quoting incident number 1218 of 30 September 2015.