Abdul Ati al-Obeidi (; ; 10 October 1939 – 16 September 2023) was a Libyan politician. He worked in the cabinet of Muammar Gaddafi. He was Prime Minister from 1977 to 1979 and General Secretary of General People's Congress from 1979 to 1981. Al-Obeidi made one of his most remarkable contributions as a primary negotiator during Libya’s historic decision to renounce and dismantle its nuclear weapons program.
On 31 August 2011, he was detained west of Tripoli by rebel forces. In June 2013, a court found him not guilty of a charge of mismanagement.
Abdul Ati al-Obeidi died on 16 September 2023 in Tripoli, Libya from a heart attack at the age of 83.