Philippe Mestrezat (1618–1690) was a Swiss Calvinist minister and professor at Geneva.
He was chosen as successor at Geneva to Alexander Morus; but in doctrinal terms shared the sympathy of Morus for the doctrines of the Saumur Academy. His views were Amyraldist, and led him into conflict with the Company of Pastors. In the debates leading up to the imposition of the Helvetic Consensus he tried to moderate the formulation applied in Geneva; but the other cantons objected, and threatened to boycott the Academy.
- (in French) Dictionnaire historique de la Suisse
- Gerald Cerny, Theology, Politics, and Letters at the Crossroads of European Civilization: Jacques Basnage and the Baylean Huguenot refugees in the Dutch republic (1987), p. 22; Google Books.
- Martin I. Klauber, Between Reformed Scholasticism and pan-Protestantism: Jean-Alphonse Turretin (1671-1737) and enlightened orthodoxy at the Academy of Geneva (1994), p. 31; Google Books.
- Schaff-Herzog article on the Helvetic Consensus