Police are appealing for help to find Callum Brown, 21, who is missing from his home in Wivenhoe.
Callum had been out with friends in Cube Bar, in Crouch Street, Colchester, on Friday, June 30, and was last seen at around 12.30am on Saturday, July 1.
He did not return home and police and his family are concerned for his welfare.
Callum was last seen wearing blue denim jeans, a red and white shirt and brown brogue shoes. He has links to Southminster.
Anyone with information is asked to contact Colchester police station on 101.