Sector 4 (Romanian: Sectorul 4) is an administrative unit of Bucharest.

Romavia had its head office in Sector 4.

[1] Carol Park, Tineretului Park, and the Văcărești Nature Park are all located in Sector 4 of Bucharest.

Daniel Băluță from the Social Democratic Party (PSD) is the current mayor, having been elected to the position in 2016 and re-elected in 2020.

The Local Council of Sector 4 has 27 seats, with the following party composition (as of 2020):