For students to become global citizens they need globally competent teachers. The purpose of this article is to describe and compare the development of global competencies in teacher candidates who participated in international teaching-focused study abroad programs. The article is framed by Critical Cosmopolitan Theory (Byker, 2013), which offers a lens for the development of global competencies through the fusion of critical consciousness (Freire, 1970) and cosmopolitanism (Appiah, 2010). In the field of teacher education, study abroad experiences can help enhance teacher candidates' commitment to culturally responsive teaching practices (Gay, 2002) and intercultural awareness (Hammer, Bennett, & Wiseman, 2003). The article reports on two case studies of study abroad programs for U.S. teacher candidates. One case study focuses on a study abroad program in China (n=13) and the other case study focuses on a study abroad program in South Africa (n=22). The article compares the teacher candidates' perceptions of their study abroad experiences in relationship to the development of global competencies.