- DCAN stands for Direction Centrale de l’Artillerie Navale (French: Central Directorate of Naval Artillery)
- DCAN stands for Development Control Advice Notes (UK)
- DCAN stands for Delaware County AIDS Network (est. 1987; Sharon Hill, PA)
- DCAN stands for Direction Construction Armes Navale (French)
- DCAN stands for Duck Callers Association of Nebraska (est. 1985; Omaha, NE)
- DCAN stands for DISA Circulars And Notices
DCAN