Labyrinth weirs are widely used in hydraulic civil engineering due to their ability to increase discharge and flow velocity, thereby dispersing energy within specific channel widths. This study experimentally investigated the hydraulic performance and energy dispersion characteristics of triangular labyrinth weirs under the influence of weir height and number of water cycles. A single-, two-, and three-cycle labyrinth weir was tested at three different heights: 10 cm, 20 cm, and 30 cm, under various flow conditions. were tested under various flow conditions and crest heights. Upstream and downstream flow depths and velocities were measured to evaluate the specific energy, energy loss (ΔΕ), and energy dissipation efficiency (%n). The experimental results indicate that energy dissipation increases significantly with both the number of cycles and crest height. The three-cycle triangular labyrinth weir exhibited the highest performance, achieving energy dissipation efficiencies exceeding 50% at higher flow rates and crest heights. The results confirm that triangular labyrinth weirs provide effective downstream energy reduction and improved hydraulic control. The findings of this study can support the optimal design of labyrinth weirs in spillways, irrigation channels, and energy dissipation structures.