The incident happened in Glasnevin at around 11pm.
The 61-year-old man was walking home with his wife late last night on Glasnevin Avenue when they were approached by two men.
They demanded he hand over his wallet and brandished a knife, before stabbing the man three times.
The two men then escaped in a car.
The victim was taken to the Mater Hospital where his injuries are described as non-life threatening.
His wife was uninjured, but was treated for shock.
Anyone with any information is being asked to contact the Garda Confidential Line on 1800 666 111.
