DSFM stands for Direction des Services aux Familles des Militaires (French: Directorate of Military Family Services; Canada)
DSFM stands for Division Scolaire Franco-Manitobaine (French: Franco-Manitoban School Division; French education schools; Winnipeg and Manitoba, Canada)
DSFM stands for Deputy State Fire Marshal (various states)
DSFM stands for Defence School of Finance and Management (UK)
DSFM stands for Differential Space-Frequency Modulation
DSFM stands for Division of Space and Facility Management (US NIH)
DSFM stands for Division of Solid and Fluid Mechanics