Kim Rubenstein FAAL FASSA (/ˈruːbənstiːn/ ROO-bən-steen; born 1965) is an Australian legal scholar, lawyer and political candidate. She is a professor at the University of Canberra.

She is a Fellow of the Australian Academy of Law and Fellow of the Academy of Social Sciences in Australia. Rubenstein won the 2013 Edna Ryan award for Leadership for "leading feminist changes in the public sphere" and is a gender equity advocate. In 2020 she became the inaugural Co-Director, Academic of the 50/50 by 2030 Foundation at the University of Canberra and a Professor in the University's Faculty of Business, Government and Law.

Rubenstein is one of Australia’s leading experts on citizenship, having written the major text, Australian Citizenship Law, acting as a consultant to government including being appointed a member of the Independent Committee that reviewed the Australian citizenship test in 2008 and appearing as legal counsel in citizenship matters before the Administrative Review Tribunal, Federal Court of Australia and the High Court of Australia. She comments on citizenship and gender matters in print, radio and TV media.

At the 2022 Australian federal election, she was an independent candidate in the Australian Capital Territory for the Australian Senate, but was not elected.

Rubenstein was born in Melbourne in 1965, the older of daughters of Leigh and Susan Rubenstein. She attended Mount Scopus College and Presbyterian Ladies' College, becoming school captain of the latter. She was involved in Netzer Olami as a teenager and spent a year in Israel after graduating high school, attending a youth leadership course in Jerusalem and living on kibbutzim.

Rubenstein studied arts and law at the University of Melbourne, graduating in 1989. She was president of the Melbourne University Jewish Students' Society and joint editor of the Melbourne University Law Review, also representing the university in national mooting competitions. She subsequently worked as a solicitor at Corrs from 1989 to 1991. In 1991–1992 Rubenstein undertook an LLM at Harvard University with the support of the Sir Robert Menzies Scholarship, a Fulbright award, and a Queen Elizabeth II Jubilee Trust award.

Rubenstein spent 13 years (1993–2006) teaching at the University of Melbourne in constitutional and administrative law, migration law and citizenship law, promoted to Associate Professor in 2005, before moving to the Australian National University to take up a professorship in 2006. During her tenure at the Australian National University Rubenstein taught citizenship law and administrative law, and from 2006 to 2015 was Director of the Centre for International and Public Law in the ANU College of Law. In 2011 she was appointed the inaugural Convenor of the ANU Gender Institute, a role she held for two years in addition to her Directorship of the Centre for International and Public Law. In 2012 she was appointed an ANU Public Policy Fellow. Rubenstein became an Honorary Professor at the Australian National University in 2020 after her move to the University of Canberra to take up the position of Co-Director, Academic of the 50/50 by 2030 Foundation.

Rubenstein was an unsuccessful candidate at the 1997 Australian Constitutional Convention election, running alongside five candidates (including Eve Mahlab and Fay Marles) under the banner of "The Women's Ticket – An Equal Say". Their group polled 2.4 percent of first-preference votes in Victoria.