The much-loved event is being held in the UK next year instead of Ukraine and there has been a lot of speculation about which city might host, with Liverpool and Glasgow both in the running.
It has now been confirmed that Norton will make the announcement during BBC’s The One Show this evening (Friday 7 October).
Ken Bruce spilled the beans on his radio show, saying that Norton - who provides commentary on the contest - would also reveal the date of the Eurovision finale.
“As you probably know there are two cities left in the race to host Eurovision 2023 on behalf of Ukraine – Glasgow and Liverpool," he said.
“But the finish line is finally in sight because I can confirm that on The One Show tonight, Graham Norton will finally reveal which city will be hosting the 67th Eurovision Song Contest next May.
"He’ll also tell us the date of the grand final.”
The UK was given the opportunity to host Eurovision after finishing second in the competition this year, with Sam Ryder as the entry.
Ukraine's Kalush Orchestra actually won, so traditionally the contest would go there the following year.
However, due to the ongoing situation with Russia, the UK will host.
Several cities were initially in the running but it was whittled down to Liverpool or Glasgow.
Following the announcement of the final two, further discussions were due to take place with officials from Glasgow and Liverpool, with the final decision a matter for the BBC in conjunction with the European Broadcasting Union (EBU).
It will be the ninth time the UK will have hosted the competition, more than any other country.
The One Show airs at 7pm on BBC One on Friday 7 October.
Additional reporting from PA.
Watch: Eurovision set to be hosted in either Liverpool or Glasgow