Trøndersk or Trøndelag Norwegian (Bokmål: trøndersk, trøndermål; Nynorsk: trøndersk, trøndsk; Trøndersk: trønder, trønder-dialekt) is a Norwegian dialect, or rather a group of several more or less distinct sub-dialects. As it is the case with all Norwegian dialects, it has no standard orthography, and its users write either Bokmål or, more rarely, Nynorsk.

Trøndersk or Trøndelag Norwegian (Bokmål: trøndersk, trøndermål; Nynorsk: trøndersk, trøndsk; Trøndersk: trønder, trønder-dialekt) is a Norwegian dialect, or rather a group of several more or less distinct sub-dialects. As it is the case with all Norwegian dialects, it has no standard orthography, and its users write either Bokmål or, more rarely, Nynorsk.