A MAN is dead and another is in hospital after crashing their car into a dam near Gympie in southeast Queensland.

The car left the Gympie Kin Kin Road at Kin Kin and crashed into the dam just after 7pm yesterday.

One of the men was thrown from the car and died at the scene.

The other man's been taken to Nambour Hospital with non-life threatening injuries.

The forensic crash unit is investigating.