Officers are concerned for the safety of 22-year-old Joe Young, who was last seen in Nottingham city centre area on Wednesday 1 February.
Joe was reported missing from the Calverton area at around 4.20pm yesterday.
He is described as having a slim build and is around 6ft 2ins tall.
Joe also has a chipped front tooth and a heavily scarred right arm.
If you have seen Joe or have any information about his whereabouts, please contact Nottinghamshire Police on 101.