AbstractPaivandi (S.). - Demographic Analysis of Illiteracy in Iran Since 1985, the growth of adult literacy in Iran has been impressive. Twelve million adults were enrolled in literacy courses during the past 12 years; the literacy rate improved by 12 points during the preceding five years, and the number of illiterates was reduced significantly since data on the educational level of the population became available (1 1.9 million in 1991, against 14.8 million in 1986). These figures have been achieved in the context of the high ideological (Islamic) content of education, and in particular in literacy campaigns (the content of texbooks, as well as the careful selection of instructors). In this article wa analize recent trends, and stress the reduction in inequality of literacy rates between the centre and the peripheral regions, between town and country and between the two sexes. Quantitative methods and diagrams are used to show the relationship between the size of the literate population and a number of social and economic indicators. @texte resum = This analysis raises a number of sociological problems relating tot the population of Iran in general. Finally, the paper deals with the impact of education on the demographic behaviour of the population, and especially of women.