Setf or SETF may refer to:
Social Exclusion Task Force Sociedad Explotadora de Tierra del Fuego, a former sheep-farming company. Southeast Toyota Finance, a division of JM Family Enterprises State Employees and Teachers Federation setf, a special form in Common Lisp and Lisp that uses its first argument to define a place in memory then evaluates its second argument and stores the returned value at the memory location Submarine escape training facility Submarine Escape Training Facility (Australia) Syrian Emergency Task Force