Turnbull-Roberts stated she stepped down to ensure her safety after being subjected to the alleged abuse by a public servant.
The former commissioner is the first person to hold the role in the Australian Capital Territory.
Former ACT commissioner alleges sexual assault and harassment
Vanessa Turnbull-Roberts has resigned as the ACT's first Aboriginal and Torres Strait Islander children and young people commissioner to prioritise her safety following allegations of sexual harassment and assault by a public servant.