The factors related to economic growth, which is one of the main macroeconomic targets, is among the topics that are frequently researched in the literature. Factors associated with economic growth may differ across to the development levels and economic structures of the countries. In this context, the aim of this study is to examine the causal relationship between health expenditures, capital accumulation and economic growth in 29 developed and 10 developing countries over the period 1999-2018 using Dumitrescu and Hurlin (2012) panel causality method. Panel causality findings have proven the existence of bi-directional causality between health expenditures and economic growth, as well as between capital accumulation and economic growth in developed countries. In developing countries, there is unidirectional relationship from economic growth to health expenditures. There is also uni-directional causality from capital accumulation to economic growth. Developed countries should develop policies stimulating capital accumulation as well as health expenditures in order to encourage economic growth, which, in turn, contribute to capital accumulation and health expenditures. On the other hand, developing countries should implement policies that encourage capital accumulation and economic growth to increase health spending. * Bu makale Yeter Atasayar'ın Ebru Topcu danışmanlığında yürüttüğü yüksek lisans tez çalışmasından türetilmiştir.