Families have gathered at a Melbourne park to remember and grieve together for loved ones killed and hurt in the Bourke Street Mall attack.
Saturday marked a year since a car drove mowed down dozens of pedestrians on the crowded street, claiming the lives of four adults, a child and a three-month-old baby.
Two plaques were unveiled at the private service, in East Melbourne, to remember those affected by the tragedy.
"On the worst of days and in the worst of circumstances we saw the very best of humanity," Premier Daniel Andrews said after the memorial.
"Today was an opportunity for us to again remind those families that we stand with them, that they're in our hearts, they're in our thoughts and prayers and they will always receive our support," he said.
He said some families had travelled across the globe to attend but others had chosen for religious or personal reasons not to be at the ceremony.
However the premier said Victorians had refused to be defined by the tragedy.
"We have heavy hearts, we send our love and support to those are affected ... but at the same time Victorians are going about their business no doubt remembering those tragic events."
Melbourne's heart broke after the outrage, Acting Lord Mayor of Melbourne Arron Wood said.
"Today was about unveiling two plaques to show the families that although our hearts broke that we'll never stop remembering them and never stop supporting them," he said.
Bourke Street shop worker Vic Hook remembers a scene of "mass confusion", as people feared they were caught in a terror attack.
"It was just the noise, that's the main thing I remember ... it sounded like gun shots and it was very loud," she told AAP.
"Obviously after, we put it together that that was him hitting people across the street ... and then we heard the gun shots that stopped him."
A public memorial service will be held on Tuesday and flags will be flown at half mast.
Alleged driver Dimitrious Gargasoulas has pleaded not guilty to 39 offences, including six counts of murder and 38 of attempted murder, over the rampage.
Among those killed was 22-year-old Sydney insurance worker Jess Mudie, 33-year-old Bhavita Patel and 25-year-old Japanese man Yosuke Kanno.
Matthew Si, 33, also died, moments after having lunch with his wife.
The youngest victims were three-month-old Zachary Bryant and Thalia Hakin, aged 10.
