Amanda O’Flaherty, 26, was critically injured only a couple of miles from her home after her blue Mazda 121 collided with a red 4x4 on the “back road” into Cobh.
The crash happened at around 5pm on Saturday.
Ms O’Flaherty was rushed to Cork University Hospital, but died of her injuries at 2am yesterday.
Gardaí have renewed their appeal for witnesses to the crash that happened on the northern side of Cow Cross. Superintendent Pat Lehane said it was dark at the time.
“There was a heavy mist and driving conditions could only be described as fair to poor at the time.
“It’s always sad when a young person loses their lives in an accident, but it is even sadder at this time of the year. On behalf of the gardaí, I’d like to extend my sympathies to Ms O’Flaherty’s family.”
The dead woman lived at O’Neill’s Place, Cobh, and was single. She was the only occupant of the car she was driving. The driver of the 4x4, a man in his 50s, wasn’t injured but is said to have been shocked by the incident.
Witnesses are asked to contact Cobh Garda Station at 021 4908530.
Ms O’Flaherty will be laid to rest on Thursday following 11am Requiem Mass at St Colman’s Cathedral in Cobh.
Meanwhile, a man in his 70s died in a house fire on the outskirts of Bantry.
The man, who was living alone, was discovered by neighbours at his house at Beach, Bantry, at around 1am last Sunday.
They alerted gardaí who sealed off the house for a technical examination.
Inspector Gerry Lacey said gardaí had ruled out foul play and were “treating the elderly man’s death as a tragic accident.”
He said that gardaí wouldn’t be releasing the dead man’s name until relatives had been contacted.