The 18-year-old left his home address in Burnetts Lane, Eastleigh, just after 9am this morning and Police are extremely concerned for his welfare.
He was last seen in the Bishopstoke area wearing a black top and black trousers.
Oliver is described as being white, 6ft 2ins tall and slim.
Police believe Oliver is still in the Bishopstoke area.
Have you seen anyone matching his description?
Anyone with information should call 101, quoting reference 44190443618.