This study concerns the political integration of the Vietnamese in Poland, one of the largest non- European immigrant communities with a very long presence in the country. The central analysis is devoted to investigating the role of bonding and bridging social capital produced by involvement in (formal and informal) social networks in the political integration of the migrant group, empirically observed through political engagement in Polish society. The study employs the mixed research method, utilizing quantitative data from an original survey with 347 respondents and qualitative data from 15 semi-structured interviews for analyses. The results show that the effects of social capital on political integration vary across types of social networks and forms of engagement in host politics. Notably, bonding rather than bridging social capital is a prominent driver of the political engagement of the Vietnamese in Polish society.