Spreader can refer to: Spreader (railroad), a kind of maintenance of way equipment designed to spread or shape ballast profiles Hydraulic spreader, a tool used by emergency crews in vehicle extrication Spreader (sailboat), an attachment to a sailboat's mast that changes the angle of shrouds Spreader bar, a BDSM bondage device Spar, the particular one on the mast of a sail boat leading a shroud to the mast head and aiding in controlling mast bend Spreader (lifting), a lifting device used to… (More on Spreader)