This is an open access title available under the terms of a CC BY-NC-ND 4.0 International licence. It is free to read at Oxford Scholarship Online and offered as a free PDF download from OUP and selected open access locations. Sovereign Debt Diplomacies aims to revisit the meaning of sovereign debt in relation to colonial history and postcolonial developments. It offers three main contributions. The first contribution is historical. The volume historicises a research field that has so far focused primarily on the post-1980 years. A focus on colonial debt from the 19th century building of colonial empires to the decolonisation era in the 1960s-70s fills an important gap in recent debt historiographies. Economic historians have engaged with colonialism only reluctantly or en passant, giving credence to the idea that colonialism is not a development that deserves to be treated on its own. This has led to suboptimal developments in recent scholarship. The second contribution adds a 'law and society' dimension to studies of debt. The analytical payoff of the exercise is to capture the current developments and functional limits of debt contracting and adjudication in relation to the long-term political and sociological dynamics of sovereignty. Finally, Sovereign Debt Diplomacies imports insights from, and contributes to the body of research currently developed in the Humanities under the label 'colonial and postcolonial studies'. The emphasis on 'history from below' and focus on 'subaltern agency' usefully complement the traditional elite-perspective on financial imperialism favoured by the British school of empire history.