Worldwide, marine conflicts are growing in frequency and intensity due to increasing global demands for resources (Blue Growth) and climate change. This article introduces a collection in Maritime Studies on marine conflicts and pathways to sustainability in an era of Blue Growth and climate change. We posit that while conflict can be problematic, it can also play a positive role in bringing about societal change, by highlighting unsustainable and unjust practices and be a trigger for sustainability transformation. However, left unattended, festering marine conflict can hinder just and equitable sustainability transformation. We present two distinct, yet arguably complementary, lenses through which researchers working with sustainability engage with marine conflicts. First, a social-ecological systems approach engages in conflicts by examining the interdependencies between human and ecological systems and related governance arrangements, promoting collaborative learning and action, and exploring adaptive governance strategies that seek sustainability conflict resolution. Second, a political ecology approach addresses conflicts by examining power dynamics and resource (mal)distributions, arguing for fair governance, and emphasizing the need to address historical and current injustices that are at the root of conflicts. Next, we present insights on diverse sustainability transformational pathways, including the importance of searching for common ground and the need for the reconfiguration of power relations as key steps to understand and inform sustainability conflict research. We conclude by indicating that more sustainability research in marine conflict settings is needed and by forwarding intersectionality as a promising approach to productively reframe and disrupt the debilitating effects of deep-rooted marine sustainability conflicts.