In a seemingly virtual era, maritime commerce and shipping retain a central role in contemporary global capitalism. Approximately 90% of global imports and exports currently travel by sea on around 93,000 merchant vessels, carrying almost 6 billion tons of cargo. Oceanic mobility and long-distance networks of trade are made possible and sustained by the life and labor of over 1.25 million seafarers currently working at sea as well as regimes of global security and governance. Yet, this oceanic world and its role in shaping politics, sociality, and regulation remains, for the most part, obscured and hidden out of sight in everyday life. As one of the oldest perils at sea, maritime piracy is not only a daily threat to seafaring and global shipping but makes visible this oceanic world and the larger networks of security and regulation that govern maritime commerce. In recent years, coastal Africa, specifically the waters off the coast of Somalia and the Gulf of Guinea, has seen an unprecedented rise in incidents of maritime piracy. The geopolitical and global trade importance of these areas has led to numerous national, regional, and international military and legal responses to combat this problem. While often seen as a seaborne symptom of failed states or criminality, maritime piracy has a more complex relationship with land- and sea-based governance. Occurring primarily in spaces that are politically fragmented but reasonably stable maritime piracy is better understood as a practice of extraction and claim making on mobility that emerges from deeper historical contexts and is linked to land-based economies and politics. Emphasizing maritime piracy in the Horn of Africa and the Gulf of Guinea within these wider historical and geographic contexts highlights the imbrication of the political and economic in shaping the emergence and transformations of this practice. This is not to deny the violence that constitutes maritime piracy, but to locate piracy within larger processes of mobility, governance, and political economy on the African continent and beyond. In addition to impacting local communities, seafarers, and global shipping, maritime piracy is key to apprehending challenges to global governance from the vantage point of the world’s oceans.