Gary Barker, PhD, is the President, CEO and co-founder of Equimundo Center for Masculinities and Social Justice (formerly Promundo-US), a major contributor to international activism on male allyship in gender equality. He has been a global voice in engaging men and boys in advancing gender equality, gender justice and positive masculinities for three decades. He was the first Executive Director of Instituto Promundo in Brazil and led its pioneering work on healthy masculinities. He is co-founder of MenCare, a global campaign in more than 50 countries to promote men’s involvement as caregivers, and co-founder of MenEngage, a global alliance of more than 1000 NGOs. He co-created the International Men and Gender Equality Survey (IMAGES), the largest survey of men’s attitudes and behaviors related to violence, fatherhood, and gender equality. He has advised the UN, the World Bank, national governments, international foundations and corporations on strategies to engage men and boys in promoting gender equality and in 2017 was named by Apolitical as one of the 20 most influential people in gender policy worldwide. He holds a PhD in Developmental Psychology and a Research Affiliate position at the Center for Social Sciences, University of Coimbra, Portugal. He lived nearly 20 years in Latin America and currently lives in Washington, DC with his binational family.