Globally many minority and Indigenous communities are searching for ways to reclaim languages that have been marginalized by socioeconomic and political processes. These efforts often involve novel literacy practices. In this article, we draw from ethnographic data in Mexico and Nepal to ask, what are the opportunities and constraints of teaching writing in support of Indigenous language reclamation? Writing is simultaneously an attraction and a source of marginalization or discouragement for learners in both settings. Promoting and teaching writing creates opportunities such as raising the status, visibility, and longevity of Indigenous language education initiatives. Challenges include struggles for legitimacy among teachers and learners and the emergence of new hierarchies among dialects. We suggest that language reclamation efforts can benefit from making the most of the material and social nature of writing and from avoiding hard-line purism and a focus on form, while giving greater consideration to meaning and contexts for written expression.