The last known contact made by Luke Johnson, 35, was via telephone at around 2.15pm on Sunday 4 October 2020.
He is described as being approximately 5ft 9in tall. Luke was last seen wearing a black tracksuit.
Officers are becoming increasingly concerned about Luke and want to make sure he is safe and well.
Anyone with information about Luke’s whereabouts should contact police on 0161 856 8973.