In this study, a total of 110 retail cereal products from Turkey were analysed for aflatoxins (AFB 1 , AFB 2 , AFG 1 and AFG 2 ) and ochratoxin A (OTA). The mycotoxins were determined by liquid–solid extraction, immunoaffinity column clean-up and high performance liquid chromatography with fluorescence detection (HPLC-FD). Recoveries (83.9–92%) and both intra-day and inter-day repeatability (RSD < 12) of the method, meet the performance criteria set by EC regulation No. 401/2006 for the determination of the levels of mycotoxins in foodstuffs. OTA was the most prevalent toxin, with an incidence of 43.6% (range = 0.066–1.125 μg kg −1 ), but at levels below the European legislation limit of 3 μg kg −1 . Aflatoxins were found in 27 of 110 analysed samples: twenty-seven samples with AFB 1 , fourteen samples with AFB 2 , seven samples with AFG 1 and two samples with AFG 2 . The ranges for positive samples were 0.052–0.233 μg AFB 1 kg −1 , 0.022–0.044 μg AFB 2 kg −1 , 0.053–0.149 μg AFG 1 kg −1 and 0.033–0.037 μg AFG 2 kg −1 . The co-occurrence of AFB 1 and OTA was observed in 14.6% of the samples. This is the first study concerning the simultaneous occurrence of aflatoxins and OTA in retail cereal products from Turkey.