DYFED-Powys Police are looking for Jamie Davies (birth name Adrian), who is missing from Pembroke Dock.
He was reported missing at approximately 3.15pm on Thursday, March 7.
Family are concerned for his welfare.
He is is 6 feet tall with short brown hair. He was wearing a black jacket,black T-shirt and grey trousers.
Anyone who has seen Jamie, or knows of his whereabouts, is asked to report information by calling 101.
If you are deaf, hard of hearing or speech impaired text the non-emergency number on 07811 311 908, quoting Ref: DP-20190307-215.
UPDATE Thursday (Mar 7): Jamie has been found safe and well.