Lights have also been placed on war graves in Aberystwyth, Bridgend, Cathays in Cardiff, Porthcawl and Rhyl.
The lights were put in place on Christmas Eve and will remain there until New Year’s Day.
Adrian Hughes, who runs the Home Front Museum in Llandudno, has taken charge of putting battery nightlight candles on more than 50 graves in two cemeteries near the town.
Just before Christmas, he placed 41 small lights on the war graves on the Great Orme headland above the town, followed by another 14 in the churchyard at Llanrhos near Deganwy.
He said: “A couple of years ago I was in the Netherlands at Christmas and was honoured to join in the traditional candle lighting ceremony at Uden War Cemetery, where I placed one on the grave of Capt Donald Lever, a fallen soldier from Llandudno.
“I’m delighted that the concept is now catching on here in the UK under the name of Operation Candlelight.
“I’ve always felt that we should do more to honour those who gave their lives at times other than November.
“The warm glow of these lights in the winter darkness is a fitting way to do just that.”