St. Stefan is an Orthodox church in Nessebar, Eastern Bulgaria. It is part of the UNESCO World Heritage Site and one of the hundred national tourist sites.

St. Stefan's Church or so called New Metropolis was built in the XI-XIII century. In the XVI century it was extended to the west, and in the XVIII century the narthex was added. On the plan, the church is a three-nave basilica measuring 12 x 9.50 meters. The average ship rises above the sideways and is crowned east and west with oval gables.

The church is built of bricks and stone blocks. During its construction a number of architectural elements - capitals, pediments, reliefs were used from previously destroyed Christian buildings.