ABSTRACT Doing, being, becoming, and belonging have been theorized as dimensions of occupation, yet belonging has received comparatively less attention from occupational scientists. The occupation-based literature tends to equate belonging with connectedness and to take a sedentarist approach in which (transnational) mobilities are considered as a challenge for occupational engagement and belonging. This paper critically examines belonging as developed through occupations and considers its constructed, dynamic, and multifaceted nature in the context of migration. Our theoretical framework is informed by transnational approaches, the mobilities paradigm, and transculturality. We draw from a cross-national comparative ethnography including 86 interviews with recent Vietnamese migrants in Vancouver, Canada, and Paris, France, as well as returning migrants in Vietnam. Our findings address participants’ belonging with regards to 1) routines, social ties, and familiarity; 2) mobile and immobile occupations; and 3) (post-)colonial politics of belonging. This study deepens understandings of the dynamic nature of occupation and belonging as well as how both are shaped by and can reproduce power dynamics. First, we contend that occupation and belonging are inherently situated, yet are not necessarily bounded to a single location. Belonging develops through routine occupations involving familiar people, objects, and amenities, which can themselves be mobile or accessible in multiple settings. Second, we emphasize how some occupations can become benchmarks for belonging, particularly in Western immigrant-receiving countries influenced by assimilationist and (post-)colonial dynamics. Lastly, we underscore individuals’ agency in employing occupations in ways to negotiate and claim belonging to their receiving and/or sending countries.