OBJECTIVES: Organized, nationwide screening for breast cancer with mammography started in Hungary in January 2002. Women in the age group 45-65 years are the target population and 2 years screening interval is applied. The aim of this study is to evaluate the quality indicators of the 4th screening round (2008-2009). METHODS: The data derive from the financial database of the National Health Insurance Fund Administration (NHIFA) covering the period of 2008-2009. We calculated the following indicators: recall rate of women who underwent mammography examinations, attendance of re-called women, proportion of women referred to surgery, proportion of women who underwent surgery compared to referred women, proportion of benign and malignant cases. RESULTS: In 2008-2009 there were 477904 screening mammography examinations in Hungary. 5.15 % of participating women were re-called. The attendance of re-called women was 92.25 %. Altogether 2092 women (9.7 %) were referred for breast surgery but only 1485 women (71.0 %) underwent surgery. Histological examination confirmed 281 benign (18.9 %) and 1204 malignant (81.1 %) cases. CONCLUSIONS: The quality indicators of the Hungarian organized mammography screening program met the recommendations of international professional guidelines. However, in addition to current indicators, new ones should be introduced in order to provide a more comprehensive monitoring of the program.