Duple may refer to:

Musical measure

* Metre (music) the rhythmic structure of music * Duple and quadruple metre a musical metre characterized by a primary division of 2 beats to the bar

Coachbuilding

* Duple Metsec former British coachbuilders acquired by Duple Coachbuilders * Duple Coachbuilders a coachbuilder that acquired Duple Metsec, later to become Hestair Duple * Duple Dominant an intercity coach bodywork design * Duple Dartline a single-decker bus body * Duple 425 a coach design built by Hestair Duple in the late 1980s * Dennis Dart a bus designed by Hestair Group, the owner of Duple and Dennis * Hestair Group who absorbed Duple Coachbuilders and Dennis {{disambiguation