DCSG

DCSG may refer to:


 * Dame Commander of Saint Gregory, female variant of a class in one of the orders of knighthood of the Holy See
 * the Data Centre Specialist Group, a Specialist Group (SG) of the British Computer Society (BCS)
 * Texas Instruments SN76489, DCSG (Digital Complex Sound Generator) sound chip by Texas Instruments
 * Disaggregated Cell Site Gateway, a project within the Telecom Infra Project (TIP)