To analyze the fertility rate trends in the GCC countries and their association with socioeconomic factors so that policymakers may use the study findings for future healthcare plans. Total population, crude death rate, life expectancy, literacy rate, human development index (HDI), female employment, unemployment rate, urbanisation, gross domestic product (GDP) per capita and inflation were chosen as possible predictors of TFR trends. The data were collected for the Global Burden of Disease 2021 study and other official databases such as the World Bank, the United Nations Development Program and Our World in Data for the 6 Gulf Cooperation Council (GCC) countries. Mean with standard deviation and percentage change was calculated to assess trends of TFR and all other variables from 1980-2021. The fertility rate declined in all 6 countries in 2021 compared to 1980. The highest decline was found in the United Arab Emirates (75.5%), while the lowest was in Kuwait (60.9%). From 1980-2021, total population, life expectancy, HDI, literacy rate, GDP, urbanisation, and female labor force increased in all GCC countries. The total population, life expectancy, urbanisation, female labor force, GDP and HDI were negatively and significantly correlated with TFR (p<0.01). The literacy rate showed a negative and significant correlation with TFR in Bahrain, Kuwait, Saudi Arabia, and Qatar. The TFR is declining in GCC countries. The plausible causes include the inclination towards postponement of marriages and excessive costs of living. These trends and associations need to be evaluated by policymakers so that they identify priority areas for interventions, allocate resources and formulate developmental plans accordingly to ensure strategic progress of the region.