<p>Unreinforced masonry stands as one of the earliest construction technologies, characterized by highly non-linear behavior in its structural elements rendering linear static analysis methods inadequate and inaccurate. Historical seismic events in Nepal, including the earthquakes in 1988, 2011, and 2015, underscore the vulnerability of non-engineered masonry buildings during seismic activities. However, an extensive literature survey highlighted that the nonlinear properties of Nepali masonry construction, are still not well identified. The objective of this study is to properly evaluate the dynamic behaviors of masonry structures with the parametric study of the various kinds of mortars used in the masonry practice in Nepal. To attain this objective, low frequency cyclic loading tests is employed on masonry walls constructed with traditional mortars—mud mortar, lime-surkhi mortar, and bajra mortar. For this, the samples were prepared following the relevant standards with the use of materials as per practiced in the field at full scale and size as per suitable for the test. A comparative analysis of these walls, focusing on seismic indicators like energy dissipation capacity, stiffness degradation, skeleton curves, and hysteresis characteristics, is conducted through shake-table testing to uncover the non-linear properties of traditional brick masonry. The test results showed that lime-surkhi mortar has superior energy dissipation and the slowest stiffness degradation, Bajra mortar achieved the highest load-bearing capacity but failed brittlely, and mud mortar exhibited the greatest ductility but the lowest ultimate load with faster stiffness degradation. Findings provides valuable insights for their continued use in restoration and preservation efforts demonstrating the seismic resilience of these traditional materials. </p>