Yaniv Roznai is an Associate Professor and Vice-Dean at the Harry Radzyner Law School, and C0-director at the Rubinstein Center for Constitutional Challenges, Reichman University. He holds a PhD and LL.M (Distinction) from The London School of Economics (LSE), and LLB and BA degrees (Magna cum Laude) in Law and Government from the IDC. In 2015-2016, Yaniv was a Post-Doc Fellow at the Minerva Center for the Rule of Law under Extreme Conditions, University of Haifa and at the Hauser Global Law School, New York University (NYU). In 2013, he was a visiting researcher at the Program in Law and Public Affair (LAPA), Princeton University. He was a Visiting Professor at the University of Milan in Italy, Mae Fah Luang University in Thailand, University of the Basque Country in Spain, Koç University in Turkey, Graz University in Austria, and Emory University in the United States. He is a Co-Chair of the Israeli Section of the International Society of Public Law (ICON-S) and an elected member of the Council of ICON-S between 2019-2022. He is the Co-Founder of the Israeli Association of Legislation and was a Co-Chair between 2017-2020. He is an elected board member and former secretary general of the Israeli Association of Public Law.

Prof. Roznai's scholarship focuses on comparative constitutional law, constitutional theory, legisprudence, and public international law. His publications appeared in journals such as The American Journal of Comparative Law, International Journal of Constitutional Law, International and Comparative Law Quarterly, Connecticut Law Review, Maryland Law Review, Michigan State Law Review, Global Constitutionalism, The Theory and Practice of Legislation, Jus Politicum, Vienna Journal on International Constitutional Law, Stanford Law and Policy Review, Wisconsin International Law Journal, European Review of Public Law, German Law Journal, Law & Ethics of Human Rights, European Journal of Law Reform, Jerusalem Review of Legal Studies, William & Mary Bill of Rights Journal. His research was presented in leading universities such as Yale, Harvard, Oxford, Princeton, Stanford, UC Berkeley, NYU, Texas, Cornell, Indiana, Washington University St. Louis, Hong Kong University, National University Singapore, Queen Mary, LSE, EUI, Edinburgh and Dublin.

Prof. Roznai’s studies were cited in decisions of the Grand Chamber of The European Court of Human Rights, The Supreme Court of India, The Federal Supreme Court of Brazil, The Colombian Constitutional Court, The Constitutional Court of Uganda, The Constitutional Chamber of the Supreme Court of El Salvador, The Constitutional Court of Slovakia, The Constitutional Tribunal of Chile, The Constitutional Tribunal of Peru, The Supreme Court of Kenya and The Supreme Court of Israel.

In 2015, Prof. Roznai was awarded the 2014 Thesis Prize of the European Group of Public Law for his PhD dissertation. His book, “Unconstitutional Constitutional Amendments - The Limits of Amendment Powers” was published in 2017 with Oxford University Press – Constitutional Theory Series. In 2018 it was awarded the Inaugural International Society for Public Law (ICONS) Book Prize (and shortlisted for the Hart-SLSA Theory and History Book Prize). His book "Constitutional Revolution", co-authored with Prof. Gary Jacobsohn, was published with Yale University Press in 2020. Prof. Roznai was awarded the 2018 Israeli Association of Public Law Gorni Prize for Young Researchers, the 2019 Justice Cheshin Prize for Excellence in Legal Research for Young Researchers, and IDC Excellence in Teaching Award for 2018 and Research Award in 2022. He was also included in 2019 TheMarker’s list of Israel’s 40 under 40 in the category of researchers, and in 2020 was selected as 'man of the year in legal academy' by the 'Court Magazine". In 2021 Prof. Roznai was awarded the "Knight of Government Quality 2020" award, by the Movement for Quality Government in Israel.