Abstract: Field experiment was conducted during 1998-99 at Malakandher Research Farms, NWFP Agricultural University, Peshawar, Pakistan to study the effect of seed rate on the yield and yield components of wheat cultivars under irrigated conditions of Peshawar. Statistical analysis of the data revealed that the plots treated with 150 kg ha-1 seed rate had higher emergence m-2 (56.00 plants m-2), number of tillers m-2 (264.37), number of productive tillers m-2 (252.62 tillers m-2), plant height (98.25 cm) and grain yield (2345.90 kg ha-1). Days to maturity were maximum in those plots, which were seeded with 100 kg ha-1. Number of grains spike-1 and thousand grain weight were more in those plots seeded with 50 kg ha-1. Mean value of the data also indicated that in case of cultivars emergence m-2 (48.88 plants m-2), plant height (96.75 cm) and thousand grains weight (43.50 g) was maximum in plots seeded with Inqilab-91. Number of tillers m-2 (272.25), number of productive tillers m-2 (263.75) days to maturity (153.50 days), number of grains spike-1 (44.00) and grain yield (2530.37 kg ha-1) was higher in plots sown with Bakhtawar-92.