The 79-year-old was the driver of a grey Volkswagen Beetle which was in a three car collision at a junction leading to Arnmannoch, Shawhead at about 3.45 pm last Friday.
The other vehicles involved were a black Vauxhall Corsa driven by a 22-year-old woman and a white Ford Transit van, driven by a 65-year-old man. Both were taken to hospital for assessment and later released.
Police have described it as a serious road traffic collision and are appealing for witnesses.
Sergeant Jonathan Edgar, of Dumfries road policing unit, said: “Given the time of day, there would have been a lot of traffic on the road so we’re appealing for anyone who saw the collision to contact us. Equally, we’re looking to speak to people who stopped to assist or had dash cameras fitted to their vehicles around the time of the collision.
“If anyone has any information, please contact us on 101 quoting incident number 2443 of 25 October 2019.”
