| Abdul Ati al-Obeidi عبد العاطي العبيدي | |
| Order: | Prime Minister of Libya |
| Term Start: | 2 March 1977 |
| Term End: | 2 March 1979 |
| Predecessor: | Abdessalam Jalloud |
| Successor: | Jadallah Azzuz at-Talhi |
| Order2: | Secretary-General of the General People's Congress |
| Term Start2: | 2 March 1979 |
| Term End2: | 7 January 1981 |
| Leader2: | Muammar Gaddafi |
| Predecessor2: | Muammar Gaddafi |
| Successor2: | Muhammad az-Zaruq Rajab |
| Order3: | Foreign Minister of Libya |
| Term Start3: | 1982 |
| Term End3: | 1984 |
| Predecessor3: | Ali Treki |
| Successor3: | Ali Treki |
| Term Start4: | 6 April 2011 |
| Term End4: | 2011 |
| Predecessor4: | Moussa Koussa |
| Successor4: | Mahmoud Jibril |
| Birth Date: | 1939 10, df=y[1] |
| Birth Place: | Jabal al Akhdar, Italian Libya |
| Death Place: | Tripoli, Libya |
| President: | Muammar Gaddafi |
Abdul Ati al-Obeidi (; Arabic: عبد العاطي العبيدي|ʿAbd al-ʿĀṭī al-ʿUbayyidī; 10 October 1939 – 16 September 2023) was a Libyan politician and diplomat. He held various top posts in Libya under Muammar Gaddafi; he was Prime Minister from 1977 to 1979 and General Secretary of General People's Congress from 1979 to 1981. He was one of three main negotiators in Libya's decision to denounce and drop their nuclear weapons program.
In 2011, amidst the First Libyan Civil War between Gaddafi loyalists and anti-Gaddafi rebels, he was appointed Foreign Minister after the defection of Moussa Koussa. In fact, he had accompanied Koussa to Djerba, Tunisia before returning to Libya while Koussa defected and went to London. On 3 April 2011 (a week after Koussa's defection), Obeidi flew to Greece to present a peace proposal to his counterpart Dimitrios Droutsas.[2]
On 31 August 2011, he was detained west of Tripoli by rebel forces.[3] [4] In June 2013, a court found him not guilty of a charge of mismanagement.[5] [6]
Abdul Ati al-Obeidi died of a heart attack in Tripoli on 16 September 2023, at the age of 83.[7]