Capital market integration is known to have the potential of stimulating economic growth. This study examines the impact of capital market integration on investment and growth among west African countries for the period 2000 -2023. The study focused on 15 West African countries, whose data were collected from the World Bank’s World Development Indicators database. The panel data collected were analyzed using descriptive analysis, correlation analysis, static panel estimation techniques of pooled OLS, Random effects, fixed effects, and the necessary diagnostic tests including the multicollinearity test, Breusch-Pagan LM test, Hausman test and normality test. The results of the study revealed that capital market integration has a positive and statistically significant impact on economic growth of West African countries over the period of study 2000 – 2023. The study recommends among others that policymakers should continue fostering capital market integration to stimulate economic growth through the creation of an environment that attracts foreign investments and supports stronger economic performance.