This study investigates the cyclic response of Adapazarı silts. Clayey-silty sand samples were retrieved from the banks of the Sakarya River, and to obtain material composed of mostly silts, the coarser fractions were first removed by sieving, followed by the segregating clay and silt size particles through sedimentation in a slurry tank and pumping out the clay fraction. The resulting silt samples, with less than 5% clay content, were classified as non-plastic silts (ML) with minimum and maximum void ratios (emin and emax) of 0.895 and 1.411, respectively. A series of constant-volume cyclic direct simple shear (DSS) tests were conducted on these reconstituted silt samples prepared by using the air pluviation method. The samples were initially consolidated under vertical effective stresses (σ′v,0) of 50, 100, and 200 kPa. They were then subjected to unilateral cyclic shear stresses at a constant shear strain rate of 3 mm/min. The applied cyclic stress ratio (CSR) ranged from 0.12 to 0.175, with loading continued until a peak cyclic shear strain or the ru values reached about of 30% or 1, respectively. The number of cycles (N) required to induce double amplitude shear strain (γDA) levels of 5% were determined. Test results were presented in the CSR–N domain, with resistance curves developed for varying (σ′v,0), post-consolidation void ratios (ec), and γDA values.