CSAO may refer to:
Companies
editConrail Shared Assets Operations, an American railroad company
Organisations
editClub du Sahel et de l’Afrique de l’Ouest, a development organization from the Sahel.
CSAO may refer to:
Conrail Shared Assets Operations, an American railroad company
Club du Sahel et de l’Afrique de l’Ouest, a development organization from the Sahel.