The man had been walking near the Aberdeenshire village of Lonmay on the A90 near Fraserburgh around 8pm on Wednesday when he was struck by a car.
Ambulance crews fought to save him but there was nothing they could do and he died from his injuries at the scene.
A Police Scotland spokesman said: "Sadly the pedestrian sustained fatal injuries at the scene.
"The road remained closed for six hours and caused no delays."
A Scottish Ambulance Service spokeswoman added: "We attended at the scene to deal with one casualty.
"We were not required to transport anyone to hospital."
Police Scotland yesterday appealed for anyone who may have seen the man walking in the area prior to the accident to contact them on 101 or anonymously via Crimestoppers on 0800 555 111.