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Coupler may refer to:



  • Railway coupler, a mechanism for connecting rolling stock in a train device
  • Quick coupler, used in construction machines to allow the rapid change of buckets
  • Coupling, a device used to connect two shafts together at their ends for the purpose of transmitting power
    • Universal coupling, a joint or coupling in a rigid rod that allows the rod to 'bend' in any direction


Other uses[edit]

  • Coupler (piping), also called a (joist) short length of pipe with two female threads
  • Coupler, a device used on a pipe organ or harpsichord to allow a player to play multiple divisions at once, by means of "coupling" a division to another at either sub, super, or octave pitches
  • Coupler, a tap valve, for controlling the release of beer out of a keg
  • Coupler, the floating link in a four-bar linkage

See also[edit]