Ismael Abraão Gaspar Martins (born 12 January 1940) is an Angolan diplomat and political figure who has been Angola's Permanent Representative to the United Nations since 2001.
From 1971 to 1972, Martins worked as a research officer on agricultural development policies in Africa for the United Nations Research Institute for Social Development in Geneva.
He then served with the United Nations Conference on Trade and Development (UNCTAD) from 1972 to 1975 as an economic affairs officer, overseeing studies and policies on the issue of economic integration in Africa, and on trade negotiations between the African, Caribbean and Pacific Group of States and the European Union.