The demand to cultivate global citizenship is frequently invoked as central to colleges' and universities' internationalization efforts. However, the term "global citizenship" remains undertheorized in the context of U.S. higher education. This article maps and engages three common global citizenship positions--entrepreneurial, liberal humanist, and anti-oppressive--and articulates an additional fourth possible position, based in encounters and engagements with incommensurability. Tracing the recurring patterns in each of these positions can allow for more complex and nuanced conversations and engagements to emerge among practitioners and students about global citizenship.