In the paper, the results are presented of the research the objective of which was to determine levels of contamination in different types of cereals products contaminated with the compounds from a group of polycyclic aromatic hydrocarbons (PAHs), i.e. with benzo(a)pyrene and with the total of benzo(a)pyrene, benz(a)anthracene, benzo(b)fluoranthene, and chrysene. In the Commission Regulation (UE) No. 2015/1125 the limits are set for the content of those compounds in infant and baby foods. The research materials were commercial-off-the-shelf (COTS) cereal flakes, groats, bread, crispbread, and muesli as well as infant and baby products: cereal gruels and milk-cereal gruels. To determine the PAHs, a high performance liquid chromatography was applied and a fluorescence detection method (HPLC-FLD) after samples saponification followed by the extraction and clean-up of the hydrocarbon fraction. The values of the detection and quantification limits, determined at the stage of validating the method, were 0.18 and 0.25 μg/kg, respectively, and they were significantly lower than the respective maximum values as set in the Commission Regulation (EU) No. 836/2011. The PAHs under study were found in 73 % of the cereals products; however, their content did not exceed 1 μg/kg. Compared to groats, crispbread, and muesli, the contents of the total of the four PAHs found in the corn flakes samples were lower. Benz(a)anthracene, benzo(b)fluoranthene, and chrysene were detected in 20 % of the analysed infant and baby gruels while benzo(a)pyrene was found in none of them.