  We report on study of magnetic impurities spin relaxation in diluted magnetic
semiconductors above Curie temperature. Systems with a high concentration of
magnetic impurities where magnetic correlations take place were studied. The
developed theory assumes that main channel of spin relaxation is mobile
carriers providing indirect interactions between magnetic impurities. Our
theoretical model is supported by experimental measurements of manganese spin
relaxation time in GaMnAs by means of spin-flip Raman scattering. It is found
that with temperature increase spin relaxation rate of ferromagnetic samples
increases and tends to that measured in paramagnetic sample.
