El Hadj Omar Bongo Ondimba (an haife shi Albert-Bernard Bongo ; 30 ga Disamba 1935 - 8 Yuni 2009) ɗan siyasan Gabon ne wanda ya shugaban Gabon na tsawon shekaru 42, daga 1967 har zuwa rasuwarsa a 2009. Ya samu ƙarin girma zuwa manyan muƙamai a matsayinsa na matashin jami'i a lokacin Shugaban Gabon na farko Léon M'ba a cikin shekarun 1960, kafin a zabe shi Mataimakin Shugaban ƙasa a ƙashin kansa a shekarar 1966. A 1967, ya gaji M'ba ya zama Shugaban Gabon na biyu, bayan mutuwar wannan. Bongo ya mutu a asibiti sakamakon bugun zuciya a ranar 8 ga Yuni 2009 a Barcelona, yana da shekaru 73.