<p>This study investigated the antifungal potential of endophytic bacteria (EB) isolated from lavender (<i>Lavandula angustifolia</i>) against two phytopathogenic fungi <i>Fusarium culmorum</i> and <i>Neoscytalidium dimidiatum</i> under greenhouse conditions. Seventy EB isolates were obtained and subjected to phenotypic characterization and enzymatic activity profiling. Through 16S rRNA gene sequencing, five isolates were identified as <i>Bacillus</i> sp. (Lvt24, Lvt25, Lvt32, Lvt58 and Lvt62). Greenhouse experiments showed lavender plants treated with a mixture of <i>Bacillus</i> sp. isolates (Lvt24 + Lvt62) via root dipping and soil application grew better than other treatments and the control. Similarly, <i>Bacillus</i> sp. (Lvt25) application alone improved plant health and growth. Plants inoculated with <i>N. dimidiatum</i> had 81.07% disease incidence and 77.7% severity, while those inoculated with <i>F. culmorum</i> had 88.43% disease incidence and 81.6% severity, indicating a high level of infection. Inoculating with the pathogens and Lvt25 isolate reduced disease incidence and severity by 56.2 and 57.9% respectively, compared to control plants infected with <i>N. dimidiatum</i>, and by 57.7 and 57.8%, respectively, compared to control plants infected with <i>F. culmorum</i>. These findings indicate that <i>Bacillus</i> sp. Lvt25 isolate has a beneficial effect in reducing disease against these pathogens and has the potential to be a biological control agent.</p>