Sveti Vlas (Свети Влас) is a village on the Black Sea coast of Bulgaria, located in Obshtina Nessebar, Burgas Oblast.

It has grown as a tourist resort in recent times, serving as a quieter alternative to nearby Sunny Beach. The gap between the two places is shrinking as more hotels are built along the coast. Sveti Vlas lies at the northern end of a bay which has Sunny Beach in its middle and the ancient town of Nessebar at its southern end.