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In this article, the effect of delamination on the free vibration behaviour of the laminated composite curved panels of different geometries (cylindrical, spherical, elliptical, hyperboloid and flat) is investigated. The laminated structure with seeded delamination is modelled mathematically using two different higher-order shear deformable kinematic models. The desired governing equation is obtained using classical Hamilton's principle and discretised with the help of finite element steps. The frequency responses are computed numerically through an in-house computer code developed in MATLAB environment. The convergence behaviour of the present numerical models have been checked and validated by comparing the frequency responses with those of the available published results. Further, the responses are also computed experimentally using CDAQ-9178 (National Instruments) in conjunction with LABVIEW …