The omnidirectional characteristics of the scattering of acoustic waves from statistically rough surfaces were experimentally investigated. The average differential scattering cross section was measured bistatically as a function of the angles of incidence and observation. Measurements for two surfaces of different roughnesses indicate the increase in the width of the scattering pattern's major lobe in the specular direction with increasing roughness. Scatter in directions other than near the specular (including the backscatter direction) is essentially independent of direction.