Gagnebina is a genus of flowering plants in the family Fabaceae. It belongs to the mimosoid clade of subfamily Caesalpinioideae. It includes five species native to the islands of the Western Indian Ocean – Aldabra, Comoros, Madagascar, and Mauritius.

• Gagnebina bakoliae Luckow & Du Puy – Madagascar
• Gagnebina calcicola (R.Vig.) Renvoize – western Madagascar
• Gagnebina commersoniana (Baill.) R.Vig. – Madagascar
• Gagnebina microcephala (Renvoize) Villiers – northeastern Madagascar and Aldabra
• Gagnebina pterocarpa (Lam.) Baill. – Comoros, northern and northwestern Madagascar, and Mauritius

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