Mikoa ya Gabon imegawanyika katika wilaya thelathini na saba (departments). Wilaya au departments zimeorodheshwa hapo chini, kwa mkoa (miji mikuu imewekwa kwenye mabano): Komo (Kango) Komo-Mondah (Ntoum) Noya (Cocobeach) Djoue (Onga) Djououri-Aguilli (Bongoville) Lekoni-Lekori (Akieni) Lekoko (Bakoumba) Leboumbi-Leyou (Moanda) Mpassa (Franceville) Plateaux (Leconi) Sebe-Brikolo (Okondja) Abanga-Bigne (Ndjole) Ogooue et des Lacs (Lambaréné) Boumi-Louetsi (Mbigou) Dola (Ndende) Douya-Onoy (Mouila) Louetsi-Wano (Lebamba) Ndolou (Mandji) Ogoulou (Mimongo) Tsamba-Magotsi (Fougamou) Basse-Banio (Mayumba) Douigni (Moabi) Haute-Banio (Minvoul) Mougoutsi (Tchibanga) Ivindo (Makokou) Lope (Booue) Mvoung (Ovan) Zadie (Mekambo) Lolo-Bouenguidi (Koulamoutou) Lombo-Bouenguidi (Pana) Mouloundou (Lastoursville) Bendje (Port-Gentil) Etimboue (Omboue) Ndougou (Gamba) Haut-Komo (Ndindi) Haut-Ntem (Medouneu) Ntem (Bitam) Okano (Mitzic) Woleu (Oyem) Mikoa ya Gabon