Profiler has multiple meanings:*Criminal profiler, a criminologist who studies a criminal's behavior for clues to psychology to aid in capturing themProfiler (computer science), a programming tool that can track the performance of another computer programProfiler (TV series), a television drama series about a criminologist profiler that aired on NBCProfiler (semiconductor metrology), a metrology tool that measures topography of semiconductor wafer. Often referred as profilometer. Profilers can b… (More on Profiler)