Between 2014 and 2018 Praeger was Foreign Secretary of the Australian Academy of Science. She was elected as a Member-at-Large of the Executive Board of the Association of Academies and Societies of Sciences in Asia (AASSA) for 2016–18 and accepted an invitation to Chair the AASSA Committee of Women in Science and Engineering (WISE). She is a Member of the Executive Committee of the Inter Academy Partnership - Science, 2017-19. Since 2019 she has been a member of the Committee for Freedom and Responsibility in Science of the International Science Council.