The House of Matsch, also written Maetsch, Mätsch, Metsch or Mazzo (Italian) is an old Swiss-Austrian noble family.
Their origin is uncertain; they may have come from the Upper Valtellina from the village of Mazzo or may have been a sideline of the lords of Tarasp.
For a time the lords of Matsch were one of the most powerful noble families in the Vinschgau and in present-day Graubünden.
Later they also acquired the bailiwicks over the subjects of the bishop of Chur in Vinschgau, Münstertal, in the Lower Engadin and in Puschlav.
They were also able to take possession of the castles and estates of Reichenberg, Ramosch, Ardez, Greifenstein, Alt-Süns in Domleschg and Klingenhorn near Malans.
The coat of arms of the von Matsch family has three transverse blue eagle wings in silver.