The electrical conductivity of iron phosphate glasses of different compositions hasbeen reported in the frequency range 100 Hz to 1 MHz and the temperature range25 °C to 400 °C. The measured ac conductivity is nearly independentof temperature but exhibits strong frequency dependence and can be described accordingto the relation σ(ω) = Aωs where the exponent s has beenfound to be less than unity. In the high temperature domain frequency dependence growsweaker at low frequencies but reMayns strongly frequency dependent at high frequencies.The dielectric behaviour is found to be consistent with Debye type dielectricrelaxation. The behaviour of ac conductivity has been divided into two domains, one inwhich ac conductivity remains close to dc conductivity and in the other case where acconductivity is substentially higher than the dc conductivity. Both these cases havebeen discussed in detail.