Ivo Šlaus (born 26 September 1931 in Split^[1]) is a nuclear and particle physicist and Distinguished Fellow of New Westminster College.

Šlaus is honorary president of the World Academy of Art and Science, dean of Dag Hammarskjold University College of International Relations (Zagreb) and a former president of WAAS. He is also a member of the international advisory council of the Club of Rome and a former president of the Croatian Association of the Club of Rome. His many scientific and diplomatic roles include: founding fellow of Academia Europaea; member of the Pugwash Council and former president of Croatian Pugwash; member of the managing board of the Balkan Political Club; chairman of the International Network of Centers for Sustainable Development; founder and former Executive Committee member of the European Physical Society; and a fellow of the World Innovation Foundation. As a former member of the Croatian parliament (2000–2003), he served on the board of the Committee for Education, Science and Culture, and in the role of the Chairman of the Subcommittee on Science, Technology and Higher Education. He is a Senior Network Member at the European Leadership Network (ELN).^[2]

Šlaus’ academic fellowships include:

• 2013–present: Distinguished Fellow, New Westminster College^{[citation needed]}
• 1994–present: Fellow, World Academy of Art and Science^{[citation needed]}
• 1991–present: Fellow, Croatian Academy of Sciences and Arts^[3]
• 1996–present: Fellow, Institute of Physics, UK^{[citation needed]}
• 1985–present: Fellow, American Physical Society^{[citation needed]}

In 2010 Šlaus constituted a small working group to evaluate the need for New Economic Theory and has published two recent papers based on that work.^[4]

Šlaus is a supporter of the Campaign for the Establishment of a United Nations Parliamentary Assembly, an organisation which campaigns for democratic reform in the United Nations, and the creation of a more accountable international political system.^[5]