Deborah Anne, Lady Chambers KC (née Tohill, born 22 March 1961) is a New Zealand King's Counsel specialising in relationship property and trusts law.

Born on the North Shore in Auckland on 22 March 1961,[1] Chambers grew up in the working-class suburb of Glenfield in a State Advances house.

He was made a Knight Companion of the New Zealand Order of Merit in the 2013 Queen's Birthday Honours, but as royal assent was given to the appointment before his death, the knighthood took effect from 20 May 2013.

She advocated for broadening the definition of "property" to include for example a spouse or partner's enhanced earning capacity in Z v Z and for better recognition of economic disparity in cases like M v B on behalf of traditional wives.

The Chambers Guide noted that interviewees widely acknowledge her to be a preeminent practitioner in her field, one source unhesitatingly calling her “the very top relationship property lawyer in the country” and adding “she is a fearless advocate, unflinching in her dedication to advancing her client’s case.”[17] In March 2022, 2023 and 2024 she was listed as the Leading Family and Relationship Property Law Barrister in Doyles Guide.