This study aimed to examine the effects of sport-specific training on selected respiratory parameters in female cross-country skiers and volleyball players. A total of 36 women voluntarily participated in the study, including 12 cross-country skiers (age: 19.17 ± 1.11 years), 12 volleyball players (age: 20.42 ± 2.19 years), and 12 sedentary controls (age: 20.42 ± 2.27 years). Pulmonary function values were measured using a spirometer under standardized conditions. Statistical analyses were conducted using SPSS v30. Since the data showed a normal distribution, a one-way ANOVA was applied to compare mean respiratory parameters among groups, followed by Tukey’s post-hoc test for pairwise comparisons.The results indicated that forced expiratory volume in one second (FEV₁), the FEV₁/forced vital capacity ratio (FEV₁/FVC), peak expiratory flow rate (PEF), forced expiratory flow between 25-75% of vital capacity (FEF₂₅-₇₅%), and maximal voluntary ventilation (MVV) were significantly higher in cross-country skiers than in sedentary participants (p 0.05). Moreover, cross-country skiers demonstrated significantly higher FEV₁/FVC and FEF₂₅-₇₅% values compared to volleyball players (p 0.05). Volleyball players exhibited significantly higher PEF and MVV values than sedentary participants (p 0.05), while no significant differences were found in the remaining parameters (p 0.05).In conclusion, female cross-country skiers displayed superior respiratory function compared with volleyball players and sedentary women. These findings suggest that the physiological demands and training characteristics of cross-country skiing may contribute more effectively to the enhancement of respiratory capacity.Keywords: Cross-Country Skiing, Exercise Physiology, Respiratory Function, Sedentary Women, Volleyball.