He rose to fame on the ITV variety show Saturday Royal in the early 80s, and was seen more recently on a Come Dine with Me special and Pointless Celebrities.
A post on his Facebook page, signed by his partner Lynn on Thursday, said: “It’s with great sadness myself and Duncan’s children have to announce the passing of Duncan Norvelle this morning at 8.15am.
“Duncan passed peacefully with myself and daughter Yasmin. Rest in peace our comedy legend, so deeply loved and will be so very missed.”
It added that funeral arrangements would be announced in due course.
Tributes have begun to come in from fellow comics including Jim Davidson, who wrote on X: “Rest in peace Duncan. You were, and always will be, a Proper Comedian.”
Comedian Jimmy Cricket wrote: “Duncan was a charismatic performer who thrilled audiences up and down the country with his style of humour and hilarious impressions, he was also a man of indomitable spirit! RIP old friend.”
Norvelle suffered a stroke in 2012.