LPN is a Licensed practical nurse in North America.
LPN or Lpn may also refer to: Lao People's Navy Lee Presson and the Nails, American swing band Lars Petter Nordhaug, Norwegian cyclist Learning Parity with Noise, a type of machine learning algorithm that allows for errors License plate number, a unique identifier for motor vehicles Liga Primera de Nicaragua, top division association football league in Nicaragua
See also Longview, Portland and Northern Railway, American railroad known as LP&N Low-power network (disambiguation), low-power sensor networks of various topologies