Fakunle, I.Arawomo, P. O.2023-03-212023-03-2120181311-2872International Journal of Differential Equations and Applications 17(1), pp. 77-88ui_art_fakunle_on_2018http://ir.library.ui.edu.ng/handle/123456789/8106In this paper, we consider the Hyers-Ulam stability of some nonlinear second order ordinary and functional differential equations. As mathematical technique, we use some nonlinear extension of the Gronwall integral inequality.enOrdinary and functional differential equationsHyers-Ulam stabilityGronwall integral inequalityArticle