The Swiss Reformed Church refers to the Reformed branch of Protestantism in Switzerland started in Zürich by Huldrych Zwingli and spread within a few years to Basel (Johannes Oecolampadius), Bern (Berchtold Haller and Niklaus Manuel), St. Gallen (Joachim Vadian), to cities in southern Germany and via Alsace (Martin Bucer) to France.Since 1920, the Swiss Reformed Churches have been organized in twenty-six member churches of the Federation of Swiss Protestant Churches.

According to a 2012 Swiss census, 26.9% of Swiss population were reported as registered members of a Reformed cantonal church.