Residual stress distributions have been measured in injection mouldings made from glass-fibre-reinforced phenolic and polyester (dough moulding compound (DMC)) thermosets. The results were inconsistent and this is believed to correspond to variability within the materials rather than to measurement error. The phenolic composite mouldings tended to have compressive residual stress near to the surface and tensile stress in the interior but examples were found in which this sense was reversed. Post-curing the phenolic composite mouldings caused the residual stress magnitudes to increase and reduced the variability in the observed stress distributions. Two DMCs were investigated. The stresses were generally lower in magnitude than those observed in the phenolic composite mouldings; examples in which the residual stress was compressive near the surface and those in which it was tensile were found with almost equal probability.