Martin Brandlmayr is an Austrian composer and percussionist (born 1971 in Bad Ischl) who works at the frontier between improvisation and composition, electronic and acoustic music.

Regular member of Polwechsel, Trapist and Kapital Band 1, Brandlmayr released with Radian seven albums since the late 1990s.

Brandlmayr also composed music for dance, opera, film and video as well as sound installations. He has worked with Howe Gelb, Mats Gustafsson, Christian Fennesz, Elisabeth Harnik, The Necks, Sachiko M, David Sylvian, John Tilbury, Ken Vandermark, Otomo Yoshihide among others.

Martin Brandlmayr received the prestigious SWR Karl Sczuka Prize for his radio play Vive les fantômes (2018) and Interstitial Spaces (2023).