Adam Piggott, 30, from Harefield, was last seen in Southampton City Centre at around 2.15am today (November 8).
Since then he has not been in contact with his family or friends, which is unusual for him and they are growing concerned for his welfare.
Police have been conducting enquiries in the area but are hoping you can help us this evening.
He is described as being white, 5ft 10ins tall, of a medium to muscular build, with short brown spikey hair and brown eyes.
When he was last seen he was wearing a khaki coat and had grey Adidas trainers on.
Have you seen anyone matching this description today? Do you know where Adam is?
Anyone with information is asked to call us on 101, quoting 44190401057.