The Northern Territory Council of Social Service has appointed Sally Sievers as its new chief executive.

The Council announced on Monday that Ms Sievers would assume the role on 15 April, describing the incoming CEO as "a well-respected advocate and leader in the community" who "brings a wealth of experience, passion, and dedication to the work of NTCOSS".

Ms Sievers served as the Anti-Discrimination Commissioner for the NT for 10 years, including 18 months as the NT Children's Commissioner.

NTCOSS noted her "successful, decorated and diverse legal career" over several decades in the NT, including working at the Australian Government Solicitor's offices, in private practice and as a relieving magistrate.

Council president Jayne Lloyd said NTCOSS is "thrilled to welcome Sally Sievers as our new CEO".

"Her remarkable track record in championing social justice aligns seamlessly with NTCOSS's core values. Sally's leadership and dedication will undoubtedly elevate our organisation's impact as we continue to address the pressing social issues impacting on people in the Territory," she said.

NTCOSS said it is "confident that Sally will play a pivotal role in steering the organisation forward during an important election year".

As chief executice Ms Sievers will be responsible for overseeing the strategic direction of NTCOSS, fostering collaboration with members and key stakeholders, and "advocating for policies that address the needs of the most vulnerable members of society".

She said she feels "honoured and excited to join the incredible team at NTCOSS".

"The organisation's unwavering commitment to social justice resonates deeply with my own values, and I look forward to working collaboratively with staff, partners, and communities to make a meaningful impact," Ms Sievers said.