A resin composition capable of achieving a printed wiring board or the like excellent in heat dissipation properties, water absorption properties, copper foil peel strength, and heat resistance after moisture absorption is provided. A prepreg, a laminate, a metal foil clad laminate, a printed wiring board and the like, which use the resin composition are also provided. The resin composition of the present invention having at least an epoxy resin (A), a cyanate ester compound (B), and an inorganic filler (C), wherein the inorganic filler (C) comprises at least a surface-treated silicon carbide (C-1) of a silicon carbide powder having at least a part of the surface treated with an inorganic oxide.