Haidar Abu Bakr al-Attas (Arabic: حيدر أبو بكر العطاس) (born April 5, 1939) was appointed Prime Minister of Yemen by President Ali Abdullah Saleh when the People's Democratic Republic of Yemen and Yemen Arab Republic united in 1990 to form present-day Yemen. Al-Attas served until 1994. He is a member of the Yemeni Socialist Party. Before unification, al-Attas served as Prime Minister (1985-1986) and Chairman of the Presidium of the Supreme People's Council (1986-1990) in the southern PDRY. When Aden in southern Yemen seceded in May of 1994, al-Attas served as the Prime Minister of the secessionist Democratic Republic of Yemen until the rebellion ended less than two months later.
| Preceded by Muhammad Ali Haitham |
Prime Minister of South Yemen 1985–1986 |
Succeeded by Yasin Said Numan |
| Preceded by none |
Prime Minister of South Yemen 1994 |
Succeeded by none |
| Preceded by Ali Nasir Muhammad |
President of South Yemen 1986–1990 |
Succeeded by none |
| Preceded by none |
Prime Minister of Yemen 1990–1994 |
Succeeded by Muhammad Said al-Attar |
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| North Yemen Kings (1918-1962); Presidents (1962-1990) |
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| South Yemen (1967-1990) |
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| Republic of Yemen President (1990-) |
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* imam until 1926
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| North Yemen (1962-1990) |
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| South Yemen (1969-1990) |
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| Republic of Yemen (1990-) |
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* acting
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