Matthias Bamert (born July 5, 1942 in Ersigen, Canton of Bern) is a Swiss composer and conductor.

In addition to studies in Switzerland, Bamert studied music in Darmstadt and in Paris, with Pierre Boulez and Karlheinz Stockhausen, and their influences can be detected in his own compositions from the 1970s. He spent the years 1965 to 1969 as principal oboist with the Salzburg Mozart Orchestra, but then switched to conducting.