A 71-year-old man from Blackpool has not been seen for almost a month.
Anthony Dean disappeared from the Blackpool South area on March 6.
He is described as 6ft 3ins, with a stocky build and grey receding hair. He was last seen wearing a black jacket, blue jeans and grey Nike trainers.
He has links to Blackpool and Manchester.
Anyone who has seen Mr Dean or knows where he might be is asked to contact police pm 101 quoting the log reference number LC-20180306-0633.