Tammany \t(a)-mma-ny\ as a boy's name is of Native American Indian origin. Name of a Delaware Native American chief who was friendly to William Penn. After the American Revolution, "Tammany Societies" appeared for patriotic and social reasons, though by 1850, the members of New York's Tammany Society controlled New York's politics.

Baby names that sound like Tammany are Damian, Dayman, Damyan, Damiano, Daman, Temani and Teman. Other similar baby names are Tazman and Tasman.