Polychlorinated dibenzo-para-dioxins (PCDDs) and Polychlorinated dibenzo- furans (PCDFs) may be released during fuel combustion in several industries including cement production. Estimation of dioxins and furans released from four cement factories in the Red Sea region, Suez Governorate, Egypt, has been calculated. The Standardized Toolkit recommended by the United Nation Environmental Program, UNEP for Identification and Quantification of PCDD's and PCDF'srelease developed by UNEP was used. Data about incineration of hazardous waste in cement kilns are also collected. Only one plant was found to incinerate according to controlled combustion processes that apply good air pollution control system, APCS, in place. The default emission factors established by UNEP toolkit were used to estimate the PCDD's and PCDF's. Only one plant allows the use of hazardous wastes, HW, in its fueling mixture. The calculated dioxins and furans for this plant (A) was 0.77 g TEQ/year into air with dioxins residue of 12.135 g TEQ/year. However, emission rate of other plants(B,C and D) were, 0.1165, 0.1 and0.07 g TEQ/year, respectively, compared with the permissible limit set by the European Union as is 0.1 ng TEQ /Nm³ TEQ for concentration of dioxin-like compounds in the discharged flue gas is 0.1 ng TEQ/Nm³ TEQ.( "EU limit value". europa.eu)