Cristian Victor Popescu Piedone is a Romanian politician who served as mayor of Bucharest's Sector 4 from 2008 until 4 November 2015, when he resigned following the Colectiv nightclub fire and the subsequent 2015 Romanian protests.

Bucharest is the capital and largest city of Romania. The metropolis stands on the River Dâmbovița in south-eastern Romania. Its population is officially estimated at 1.76 million residents within a greater metropolitan area of 2.3 million residents, which makes Bucharest the 8th most-populous city in the European Union. The city area measures 240 km2 and comprises 6 districts (Sectoare), while the metropolitan area covers 1,811 km2. Bucharest is a beta global city, a major cultural, political and economic hub, and the country's seat of government.