He was Gary Wilson, aged from the Lisburn area.
The smash happened on the Old Ballynahinch Road in Lisburn.
He was the driver of one of the vehicles involved in the collisiion which occurred just before 7 am.
Inspector Savage said: “The Old Ballynahinch Road is closed from the junction of Saintfield Road to Drennan Road, and the Comber Road is also closed from its junction with Ballynahinch Road to Saintfield Road at this time while police conduct their investigation into the cause of the collision.
“We are appealing to anyone who witnessed the collision, or who has any information which could assist the investigation, to contact 101 quoting reference 200 of 14/08/17.”