Mercury (Hg), cadmium (Cd), lead (Pb), copper (Cu) and zinc (Zn) levels in European sea bass Dicentrarchus labrax (Linnaeus, 1758) and gilthead sea bream Sparus aurata Linnaeus, 1758 that are commercially sold on the Sinop fish markets were appraised. Selected heavy metals were assayed in edible tissues of the sampled fish, using an Inductively Coupled Plasma Mass Spectrometry (ICP-MS).