COD
CSB stands for:
- Chemical oxygen demand , as a sum parameter, a measure of the sum of all substances in the water that can be oxidized under certain conditions
- Christian-Social Citizens (in Garmisch-Partenkirchen: Christian Social Alliance), name of electoral associations in several Bavarian cities
- Confederación Suramericana de Billar, predecessor of the Confederación Panamericana de Billar , South American billiards umbrella organization
- Congregatio Sancti Basilii, congregation of St. Basil's Priests , an international religious order of Roman Catholic priests and students
- US Chemical Safety and Hazard Investigation Board , an independent agency of the US government, based in Washington, DC. and deals with the investigation of industrial accidents
csb stands for:
- Kashubian language (ISO-639-3 code), West Slavic language