Abstract: A modular separating barrier element including a frame of generally rectangular structure which is molded from synthetic material and which borders an inner panel having plain regions and regions having perforations and other regions having reinforcing ribs. Detachable feet are coupled rotatably to the lower ends of the shorter sides of the structure of the element. The shorter sides have elements for complementary coupling with other elements of adjacent barriers. Each of the shorter sides may include a pair of projections, those of one of the sides having respective vertical through-holes and those of the other side having respective pairs of coaxial rods which extend vertically and which can be fitted in the holes of the projections of an adjacent barrier element.