Field experiment was conducted at Agricultural Research Farm, Banaras Hindu University during winter seasons of 2014-15 and 2015-16 to evaluate the effect of herbicides alone or as mixture with or without nonionic surfactant on broad-leaf weeds in barley (Hordeum vulgare L.). Post-emergence application of premix formulation of metsulfuron-methyl + carfentrazone-ethyl at 25 g/ha + surfactant at 0.2% proved most effective against Anagalis arvensis L., Chenopodium album L., Melilotus alba L., Solanum nigrum L. and Rumex dentatus L. Maximum reduction in population and dry weight of weeds, and higher weed control efficiency (63.2%), yield attributes and yield (3.5 t/ha) of barley were recorded in metsulfuron-methyl + carfentrazone-ethyl at 25 g/ha + surfactant at 0.2% applied as post-emergence.