Smooth operator or smoothing operator may also refer to:

"Smooth Operator" (Sarah Vaughan song), 1959. "Smooth Operator" is a 1984 song by Sade. "Smooth Operator" (Big Daddy Kane song), 1989. A smoothing operator, used to remove noise from data. A mathematical operator, whose Schwartz kernel is a smooth function (i.e., infinitely differentiable). The nickname given to Carlos Sainz Jr. by many Formula One fans.