Metal pollution of water ways directly affects human health and can impact the food chain. Toxic trace metals in canned foods may occur as a result of polluted water or by migration from the packing material. The purpose of in this study was to analyze the concentration of selected toxic elements including Pb, Cu, Cd and dietary metals Zn and Mn in 10 each can from five different brands (local and imported) of canned tuna fish were quantitatively determined by acid digesting method and atomic absorption spectroscopic method. All samples were collected from different city marts in Yangon. The concentration of metals (toxic and essential) in five different brands were found to be observed in the range of 0.0195 to 0.0209 mg/ l for Mn, 0.300 to 0.304 mg/l for Zn, 0.053 to 0.039 mg/l for Cd of local brands. In imported canned tuna brands, the concentration of Mn and Zn, were observed in the range of 0.0171 to 0.0218 mg/l, and 0.261 to 0.343 mg/l. The concentration of some toxic elements Cd, Pb and Cu in different imported brands were observed in the range of 0.044 to 0.051 mg/l for Cd. The concentration of Pb and Cu were not detected in all brands (local and imported) of tuna canned. The average concentrations of all toxic and essential metals were much lower than the reference limit (WHO/FAO). Based on the obtained results it can be concluded that the all canned samples (local and imported) are free from heavy metal contamination