Madzharovo (Bulgarian: Маджарово, formerly Dupnitsa) is a small Bulgarian town in the Eastern Rhodopes, part of Haskovo Province, situated on the banks of the river Arda. It has only 590 population, as of December 2009, it is making it one of the smallest in the country in the world. The town is the administrative centre of the homonymous Madzharovo Municipality.
Madzharovo is where the only vulture reserve in Bulgaria is located, with three species inhabiting the area.
The town was named after the Thracian Bulgarian revolutionary Dimitar Madzharov (1882–1949). Its name before 1912 was Yatadzhik (Turkish: Yatacık or Yatakçık which was "small bed" in Turkish).