2021 Rijeka local elections

The 2021 Rijeka local elections were the elections for the 15th mayor of Rijeka, the two deputy mayors and the 31 members of the Rijeka City Council. It was a part of the Croatian local elections which were held on 16 May 2021. The incumbent mayor, Vojko Obersnel of the Social Democratic Party (SDP), announced on 6 November 2020 that he would be retiring at the end of his sixth consecutive term in office. The first round saw Marko Filipović (30.25%) and Davor Štimac (16.10%). Filipović is defending the "long-time stronghold" of the SDP against independent centre-right candidate Štimac.

Background
Workers' Front's announcement of Katarina Peović's candidature for the mayor of Rijeka caused a rift in the Green–Left Coalition and ultimately resulted in the expulsion of the Workers' Front from the coalition in December 2020, ahead of the elections.

Aftermath
The constituent session of the city council was held on June 29 at the Croatian Cultural Center in Sušak. Ana Trošelj (PGS) was elected president of the council, and Josip Ostrogović (HDZ) and Željko Jovanović (SDP) were elected vice presidents. The majority in the council will be made up of the SDP coalition and the coalition of PGS and Labor, while the opposition includes HDZ, Most and the coalition of AM, UK and Alternativa.

Due to the failure to represent the representatives of the Serbian national minority in the council, by-elections were announced for October 3, 2021 for the election of one representative of the minority. This will increase the number of representatives in the council to 32.