Gardaí at Skibbereen are seeking the public's help in tracing the whereabouts of 40-year-old Cornelius (Nelius) Twoomey from Leap, Co Cork.
He was last seen on Wednesday.
He is described as 5'5'', stocky athletic build, shaved head, brown eyes and a dark complexion.
When last seen he was wearing a blue shirt and blue jeans.
He is in possession of a blue Suzuki Ignis 02 C 213. Anyone with information should contact the Gardai at Skibbereen on 028 23088.