マンフレッド・B・スティーガー（Manfred B. Steger、1961年 - ）は、オーストラリアの政治経済学者、社会学者。グローバリゼーション研究が専門。
ハワイ大学マノア校で修士号取得後、1995年、ラトガース大学で博士号を取得。助教授、准教授、同教授を経て、現在、ロイヤルメルボルン工科大学教授。
著作 The rise of the global imaginary: political ideologies from the French Revolution to the global war on terror, Oxford University Press, 2008. Judging nonviolence: the dispute between realists and idealists, Routledge, 2003. Globalization: a very short introduction, Oxford University Press, 2003, 2nd edtion, 2009. 「グローバリゼーション」櫻井公人・櫻井純理・高嶋正晴訳、岩波書店、2005年、新版, 2010年。 Globalism: the new market ideology, Rowman & Littlefield, 2002, 2nd edtion, 2005, 3rd edtion, 2009. Gandhi's dilemma: nonviolent principles and nationalist power, St. Martin's Press, 2000. The quest for evolutionary socialism: Eduard Bernstein and social denocracy, Cambridge University Press, 1997.
共著・編著 Neoliberalism, by Manfred B. Steger and Ravi K. Roy, Oxford University Press, 2010. Ideologies of globalism, edited by Paul James and Manfred B. Steger, Sage, 2010. Rethinking globalism, edited by Manfred B. Steger, Rowman & Littlefield, 2004. Social capital: critical perspectives on community and "Bowling alone", edited by Scott L. McLean, David A. Schultz, and Manfred B. Steger, New York University Press, 2002. Grassroots Zen, by Manfred B. Steger and Perle Besserman, Tuttle Publishing, 2001. Violence and its alternatives: an interdisciplinary reader, edited by Manfred B. Steger and Nancy S. Lind, Macmillan, 1999. Engels after Marx, edited by Manfred B. Steger and Terrell Carver, Manchester University Press, 1999. Selected writings of Eduard Bernstein, 1900-1921, edited, translated, and with an introduction by Manfred Steger, Humanities Press, 1996. Crazy Clouds: Zen radicals, rebels, and reformers, by Perle Besserman and Manfred Steger, Shambhala, 1991.