Zbigniew Gwiazdzinski, 52, has not been seen since Monday, September 29.
And his family and police are becoming concerned for his welfare.
Detective Inspector Steven Greenbank, from Wakefield CID, said: “Mr Gwiazdzinski’s behaviour is considered to be out of character and both his family and police are growing increasingly concerned for his welfare.
“He is thought to be using a silver coloured Volvo S60 vehicle with the registration YH05 YTX and may be in Derbyshire or South Yorkshire.
“When he was last seen he was wearing a dark leather jacket, grey woolly sweater, black jeans and black shoes.”
Anyone with any information is asked to contact West Yorkshire Police on 101 and quote reference number: 1006