This article addresses debates in geography regarding the nature and significance of hospitality. Despite increasingly inhospitable policy landscapes across the Global North, grassroots hospitality initiatives persist, including various global travel-based initiatives and networks. Drawing from research with these travel networks, we argue that hospitality is fundamentally based on a pervasive, mutualistic sociality in a multitude of forms. Such initiatives, and hospitality more generally, can be better understood in terms of their relationship to these wider mutualities. we therefore use Peter Kropotkin’s anarchist-geographic concept of mutual aid – in conversation with Jacques Derrida and other thinkers – to reimagine hospitality as ‘mutual hospitableness’; systemic, spatio-temporally expansive and underpinned by a conception of self that is constituted through, and gains its vitality from, intertwinement with the other.