Chemical disinfection is a fundamental component of biosecurity strategies for controlling transboundary animal diseases (TADs). However, virucidal efficacy is often evaluated using simplified experimental designs that focus on single viruses or fixed exposure conditions, limiting comparative interpretation across biologically heterogeneous animal viruses. In this study, virus-specific virucidal response patterns were explored across four representative TAD viruses: avian influenza virus (AIV), African swine fever virus (ASFV), foot-and-mouth disease virus (FMDV), and lumpy skin disease virus (LSDV). Four disinfectant active ingredients representing distinct chemical classes—benzalkonium chloride, glutaraldehyde, potassium peroxymonosulfate, and citric acid—were evaluated using standardized quantitative suspension assays. Each disinfectant was tested across multiple concentration levels and contact times, and virucidal activity was assessed based on log₁₀ reduction values. At a fixed contact time, distinct virus-specific concentration–response patterns were observed. Enveloped viruses generally exhibited greater susceptibility to aldehyde- and oxidizing agent-based disinfectants, whereas marked limitations were observed for quaternary ammonium compounds against certain non-enveloped viruses. Organic acid-based disinfectants demonstrated strong virucidal activity under acidic conditions for selected viruses but showed variable performance depending on virus type. Extension of contact time reduced the concentration required for effective inactivation in some virus–ingredient combinations, while other combinations showed limited time-dependent enhancement, indicating that prolonged exposure does not uniformly compensate for lower intrinsic activity. These results highlight substantial heterogeneity in virucidal response patterns among TAD viruses under identical experimental conditions. Rather than emphasizing single-condition efficacy outcomes, this preliminary analysis underscores the importance of pattern-based interpretation across concentration and time dimensions when comparing disinfectant performance against diverse animal viruses.