Turf may refer to

• Sod, the surface layer of ground consisting of a matt of grass and grass roots, sometimes used as a construction material
• AstroTurf, or any variety of artificial turf made to resemble grass
• A colloquialism for the world of horse-racing
• Slang for territory claimed by a gang
• Slang for the area of jurisdiction or influence exercised by a unit within a bureaucracy