The man killed in a road accident between Ballacolla and Rathdowney in the early hours of Friday morning has been named locally as Keith Orr.
Aged in his early 40s, Mr Orr grew up in Ballacolla where he attended the local school.
He worked in the haulage industry and is survived by family members, including his father Davy.
The single vehicle collision took place at about 1am on Friday morning on the Ballacolla to Rathdowney Road (L1640).
He was pronounced dead at the scene and his body was removed and taken to Midlands Regional Hospital Portlaoise.
A male passenger, aged in his early 30s, was treated at the scene for his injuries, believed to be non-life threatening.
Gardaí are appealing for any witnesses to this collision to come forward.
Any road users who may have camera footage (including dash-cam) and were travelling on the Rathdowney Road (L1640) between 12.30am and 1.30am are asked to make this footage available to Gardaí.
Funeral arrangements to follow.