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This study aimed to analyze the essential oils of the aerial parts (A) and flowers (F) of <i>Rosa banksiae</i> var. <i>banksiae</i> Ait. (RBW), <i>Rosa polyantha</i> Thunb. “orange fairy” (RPO) and <i>Rosa polyantha</i> Thunb. “white fairy” (RPW), family Rosaceae, and perform multivariate data analyses and antimicrobial activity evaluations. The essential oil analyses were performed by GC/FID and GC/MS. Principal component analysis (PCA), hierarchical cluster analysis (HCA), and clustered heat map were used for the multivariate analyses. The antimicrobial activity was evaluated by the well-diffusion method against four bacteria and four fungi. Two hundred fifty-three compounds were identified from the six oil samples. The major components in RBW-A, RPO-A, and RPW-A were <i>n</i>-undecane (14.40, 19.36, and 9.21%) <i>n</i>-dodecane (14.54, 22.13, and 8.39%), and yomogi alcohol (8.41, 10.53, and 6.28%), respectively, whereas RBW-F, RPO-F and RPW-F contained <i>n</i>-heptadecane (16.70%), <i>n</i>-undecane (7.98%), and <i>β</i>-phellandrene (22.78%), respectively. The tested essential oils showed moderate antifungal activity against <i>Aspergillus fumigatus</i> compared to amphotericin B. PCA and HCA revealed five main clusters. The six samples carried close chemical profiles and can be regarded as fruitful sources of safe antifungal agents.