Dekoa (Dékoua) is a sub-prefecture and town in the Kémo Prefecture of the south-eastern Central African Republic.

Jean Jacques Marie Ferdinand de Béhagle was a French explorer of Africa. He served with the colonial service in Algeria and travelled in the Congo and Ubangi region. While attempting to find a viable land route from the Congo to the Mediterranean via Chad he was taken prisoner by Rabih az-Zubayr and hanged.