The aim of this master's thesis was to analyze differences between Croatian female volleyball representatives in the cadet and junior age categories in specific motor abilities. Further objec-tives included profiling selected motor abilities of the chosen cadet and junior volleyball play-ers, as well as comparing the selected cadet and junior female volleyball players in the chosen motor abilities. The study involved 28 volleyball players with an average age of 15.69 ± 1.02, who are members of the Croatian national volleyball team in the cadet and junior categories. The set of variables consisted of 10 motor tests in the areas of agility, explosive power of the throwing and jumping types, and flexibility. Basic descriptive indicators were calculated using descriptive statistics. The Mann-Whitney U test was used to determine potential statistically significant differences between the groups of cadet and junior players in the observed motor abilities, while the Cohen's r test was used to determine the effect size of the difference analysis between the groups of cadet and junior players in the observed motor abilities. The results of the study showed that a statistically significant difference between the selected cadet and junior volleyball players was achieved in the tests of side steps (KUS), step-hop (SHOP), and the medicine ball throw from lying position (1kg) (BML1). The obtained results will provide criti-cal data on certain motor abilities of young selected female volleyball players, which will assist coaches in planning and programming an adequate training process. Additionally, it will help both in monitoring and in the selection process of volleyball players at the national team level.