A total of hundred and forty samples of milk and dairy products (twenty each) of raw milk, UHT milk, set yoghurt produced at small and large scale, Damietta cheese, white soft cheese, and butter; were collected from different markets at Damietta Governorate during the period from October 2020 to March 2021 and examined for the presence of aflatoxin M1(AFM1) residues. The obtained results showed that all examined samples were contaminated with AFM1 but within the permissible limits recommended by Egyptian Standards and European Commission. The mean value for the AFM1 residues were 25.09 ± 1.7; 14.7 ± 0.35; 18.8 ± 0.2; 19.06 ± 0.7; 21.57 ± 1.28; 17.7 ± 0.32 and 16.69 ± 0.51 ng/L raw milk, UHT milk, set yoghurt produced at small and large scale, Damietta cheese, white soft cheese, and butter samples, respectively. The AFM1 has a considered health hazard even if present within permissible limits as it has an accumulative effect especially if it is present in a daily consuming food such as dairy products.