Merseyside Police is becoming increasingly concerned for the whereabouts of 31-year-old Sian Grantham.
Sian has not been seen since Sunday, 20 January when she was in the Wallasey area of Merseyside.
Sian is described as white, 4ft 12in tall of slim build, with long black hair and glasses. It is not known what she was last seen wearing.
Sian has links to the Wallasey area of Merseyside and Oxfordshire.
Officers would urge Sian or anyone who has seen her since 20 January to contact @MerPolCC, or call 101.