Abdul Ati al-Obeidi (/ˈɑːbdəl ˈɑːti ɑːl oʊˈbeɪdi/ ⓘ; Arabic: عبد العاطي العبيدي, romanized: ʿAbd al-ʿĀṭī al-ʿUbayyidī; 10 October 1939 – 16 September 2023) was a Libyan politician and diplomat.

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.

On 3 April 2011 (a week after Koussa's defection), Obeidi flew to Greece to present a peace proposal to his counterpart Dimitrios Droutsas.

[5][6] Abdul Ati al-Obeidi died of a heart attack in Tripoli on 16 September 2023, at the age of 83.