A field trial was made at the Bangladesh Agricultural Research Institute Farm, Joydebpur, Gazipur, during a rabi season to examine the effect of varying nitrogen dose and plant row spacing on the nutrient uptake pattern of foxtail millet. Four nitrogen rates (0,30, 60 and 90 N kg/ha) and four row spacing (15, 25, 35 and 45 cm) were tested. K uptake increased with the increase of the plant’s age. The leaf and stem showed the highest K content at 64 and 84 DAS,respectively and the ear at maturity stage. The plant part’s K uptake/plant and K uptake/ha significantly increased with increasing N rate. Per plant K uptake was found to increase with increasing row spacing. Whereas, per hectare K uptake was found to decrease with the increase of row spacing. At maturity, irrespective of the treatment differences, the highest value of K uptake was seen in the plant tissue under 90 kg/ha (stem-76.7298, leaf-33.773 and ear-31.849 mg/plant) and at 45 cm spacing (stem-78.195, leaf-31.15 and ear-30.695 mg/plant). Whereas, significantly highest K uptake/ha was observed in the tissue under heavy nitrogen dose when grown at 15 cm spacing (stem-33.248, leaf-1 14.424 and 112.110 kg/ha).