While short-beaked common dolphins are often regarded as highly mobile animals, their movements and ranging patterns are poorly known and no long-distance movements have been documented through photo-identification of individuals. We report the long-distance movement of a naturally marked individual, encompassing a minimum of 1000 km across the Ionian and the Adriatic Seas, and the subsequent behaviour and site fidelity of the same individual, in association with a calf, in and around the commercial port of Monfalcone, northern Adriatic Sea. This is the longest documented movement for any indi- vidual of this species, worldwide.