In this article, the unsteady stagnation point flow and heat transfer of a nanofluid over a stretching sheet with the effects of magnetic field and porous media is investigated numerically. The effects of thermal radiation are also considered. In contrast to the conventional no-slip condition at the surface, Navier’s slip condition has been applied. The behaviour of the nanofluid was investigated for three different nanoparticles in the water-base fluid, namely, copper, alumina, and titanium. The simila rity solution is used to reduce the governing system of partial differential equations to a set of nonlinear ordinary differential equations, which are then solved numerically by using the fourth- order Runge-Kutta method along with shooting technique. The results corresponding to the dimensionless velocity and temperature profiles, also the skin friction and the reduced Nusselt number are displayed graphically for various pertinent parameters.