Vibration characteristics of laminated circular cylindrical shells are investigated using a theoretical procedure developed in the previous papers. Numerical results are presented for a family of graphite-epoxy cylindrical shells with layers of angle-ply and cross-ply laminated either symmetrically or antisymmetrical about the shell middle surface. Effects of the different shell boundary conditions and geometries, as well as number and angle of orientation of the lamina, on the natural frequencies are also demonstrated.