Electronic Journal of Differential Equations, Vol. 2010(2010), No. 68, pp. 1-18. Title: Existence of solutions for nonlinear parabolic systems via weak convergence of truncations Authors: Elhoussine Azroul (Faculte des Sciences Dhar-Mahraz, Morocco) Hicham Redwane (Univ. Hassan 1, Settat, Morocco) Mohamed Rhoudaf (Faculte des Sciences et Tech. de Tanger Morocco) Abstract: We prove an existence result for a class of nonlinear parabolic systems. Without assumptions on the growth of some nonlinear terms, we prove the existence of a renormalized solution. Submitted March 2, 2010. Published May 17, 2010. Math Subject Classifications: 47A15, 46A32, 47D20. Key Words: Nonlinear parabolic systems; existence; truncations; renormalized solutions.