Here are some of his notable works:
* Ethiopia Unbound: Studies in Race Emancipation (1911): This book is considered his magnum opus and a key text in Pan-African thought. It argues for the self-determination of Africa and criticizes colonialism and European racism.
* Gold Coast Native Institutions (1903): This book examines the traditional political and social structures of the Gold Coast (now Ghana), aiming to promote understanding and preservation of indigenous institutions.
* The Truth About the Negro: Being the Substance of Lectures on the Psychology of the Negro, Delivered to the Fabian Society, London (1914): This book addresses misconceptions about African people and their history, arguing for their inherent capabilities and potential for development.
* A King's Story: The Life and Times of King Aggery of the Ga State, 1757-1832 (1921): This biographical work highlights the life and achievements of an important Ghanaian ruler, contributing to the historical record of African leadership.
Beyond these major works, Casely Hayford wrote numerous articles, essays, and speeches, advocating for African rights and promoting the cause of Pan-African unity. His writings continue to be influential in the study of African history, culture, and politics.