This article discusses the important role that repositories can play in ensuring that research infrastructures have the ability to implement and promote multilingualism at scale in an open science environment. It notes that implementation of multilingualism in open repositories cannot be dissociated from wider concerns of discoverability, research assessment practices, and the anglocentric nature of digital infrastructures and metadata standards or protocols. It draws on the COAR (Coalition of Open Access Repositories) recommendations report produced by the COAR Task Force on Supporting Multilingualism and non-English Content in Repositories, and  examines how and why three particular recommendations contained in the COAR report are especially well suited to support a decolonial trajectory for the management of multilingualism in open repositories.