Leon Gee, 21, left his home address on Euston Road at around 5am on Sunday, July 12 but has not been seen or made contact with friends or family since.
He is described as white, 6ft tall, medium build with dark brown hair. He has a number of distinctive tattoos, including a tattoo of the word “Jase” across his back and thorns tattooed on his arm.
Officers believe he could have links to the South Kirkby area.
PC Cheryl Oldacre, of Morecambe Police said: “Leon has not made contact with friends or family for quite some time now and we are becoming increasingly concerned about him. If anyone has seen him or has any information about where he might be, I would urge them to contact us. Similarly, I would also urge Leon, if he sees this appeal, to get in touch with us to let us know he is safe.”
Anyone with information can call Lancashire Police on 101 quoting log 448 of July 19.