Eight victims identified so far
At this point, we know the names of eight victims, who have been identified by the media, friends and relatives since the shooting.
Here's everything we know about them:
Rabbi Eli Schlager
The 41-year-old British-born rabbi, was assistant rabbi at Chabad Bondi, which organised the event.
Schlanger had lived in Sydney for the past 18 years. He had recently become a father for the fifth time.
Peter Meagher
Meagher was working as a freelance photographer at the event, his rugby team, Randwick Rugby Club, said. He was a retired policeman.
Dan Elkayam
French President Emmanuel Macron confirmed that Elkayam, a French citizen, was among those killed.
Local media said he was in his late twenties and had gone down to celebrate at the festival. He was reportedly employed at NBC Universal in Sydney.
Matilda
The 10-year-old primary school student was named by her aunt on social media.
She was described as a "bright, joyful, and
spirited child who brought light to those around her", according to local media.
Reuven Morrison
Chabad identified another victim was identified as Reuven Morrison, "a member of the Chabad community who divided his time between Melbourne and Sydney".
Alex Kleytman
The 87-year-old Holocaust survivor had attended the event with his wife Larisa, his children and grandchildren. His wife is also a Holocaust survivor.
Rabbi Yaakov Levitan
Chabad identified him as secretary of the Sydney Jewish religious organisation Beth Din.
Tibor Weitzen
He was identified as one of the victims after he was fatally wounded while shielding his wife from the gunfire, who survived, the Daily Mail reported.