23-year-old Joshua Peter Ffrench from York has not been seen since Tuesday 10 May at his home address on Burnsall Drive in York. He was reported missing by a family member on Sunday 22 May 2011
Officers are trying to locate Joshua as they have concerns for his health and believe he does not have his essential medication.
Joshua is described as white, approximately 6ft tall with a medium build and brown hair.
It is possible that Joshua is anywhere in the country.
Police Constable Steve Skeoch, of the York Safer Neighbourhood Team, said: "Joshua is not wanted in connection with any other enquiries. We simply want to establish that he is safe and well.
"If Joshua sees this appeal I urge him to contact me or visit the nearest police station so that they can verify he is well.
"I also ask that if anyone recognises Joshua they contact me straight away."
Joshua, or anyone who can help to locate him, is asked to contact PC Steve Skeoch at York Police Station on 0845 60 60 24 7 quoting reference number 12110083331..http://www.northyorkshire.police.uk/index.aspx?articleid=6834