A field experiment was conducted to study the effect of different levels of phosphorus (0, 25, 50, 75 and 100 kg P2O5 ha-1) on two maize cultivars (Hybrid N-6240 and Hybrid 6622) under saline conditions. Plant height, number of cobs per plant, number of grain rows per cob, number of grains per cob, grain weight per cob, 1000-grain weight, stalk and grain yield increased significantly with phosphorus applications. The maize plants fertilized with 75 kg P2O5 ha-1 performed better in grain weight per cob, number of grains per cob, cob weight and 1000-grain weight over other levels. Maximum plant height and number of cobs per plant were recorded in maize plants fertilized with 100 kg P2O5 ha-1 whereas maximum number of grain rows per cob was produced in maize plants fertilized with 50 kg P2O5 ha-1. The non-significant effect of phosphorus on harvest index was observed. The non-significant effect of phosphorus on harvest index was due to the better ability of heavy plants (producing greater biomass) to produce more economic yield under the saline conditions. Genotypic and genotype × phosphorous effects were non-significant for all the characters studied. The application of phosphorus at the rate of 75 kg P2O5 ha-1 appeared the best dose for maize crop under the saline conditions.