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This study utilized a diverse <i>Capsicum</i> accessions (5658) sourced from various species and geographical regions, deposited at the National Agrobiodiversity Center, Genebank. We employed 19 SNP markers through a Fluidigm genotyping system and screened these accessions against eight prevalent diseases of pepper. This study revealed accessions resistant to individual diseases as well as those exhibiting resistance to multiple diseases, including bacterial spot, anthracnose, powdery mildew, <i>phytophthora</i> root rot, and potyvirus. The <i>C. chacoense</i> accessions were identified as resistant materials against bacterial spot, anthracnose, powdery mildew, and <i>phytophthora</i> root rot, underscoring the robust natural defense mechanisms inherent in the wild <i>Capsicum</i> species and its potential uses as sources of resistance for breeding. <i>C. baccatum</i> species also demonstrated to be a promising source of resistance to major pepper diseases. Generally, disease-resistant germplasm has been identified from various <i>Capsicum</i> species. Originating from diverse locations such as Argentina, Bolivia, and the United Kingdom, these accessions consistently demonstrated resistance, indicating the widespread prevalence of disease-resistant traits across varied environments. Additionally, we selected ten pepper accessions based on their resistance to multiple diseases, including CMV, <i>Phytophthora</i> root rot, potyviruses, and TSWV, sourced from diverse geographical regions like Hungary, Peru, the United States, and the Netherlands. This comprehensive analysis provides valuable insights into disease resistance in <i>Capsicum</i>, crucial for fostering sustainable agricultural practices and advancing crop improvement through breeding strategies.