Abstract. This study investigates the shear behavior of deep concrete beams reinforced with basalt fiber reinforced polymer (BFRP) bars for flexure without web reinforcements. The experimental testing performed herein consisted of a total of 4 short beams, three of which were reinforced with BFRP and one beam was reinforced with steel bars. The primary test variable was the shear-span-to-effective-depth ratio (a/d) and its influence on the beams' mid-span deflections, shear capacity, load-deformation relationships and the failure modes.