Dušan Vučićević, an associate professor at the
Faculty of Political Sciences of the
University of Belgrade, said that opposition parties could perform well in municipalities like
Savski Venac, Vračar, and
Stari Grad. Srećko Mihailović from Demostat, a research and publishing non-governmental organisation, also said that opposition parties could receive an even better result in comparison with the 2022 election.
Đorđe Vukadinović of
Nova srpska politička misao also said that opposition parties could perform well in
New Belgrade. Dejan Milenković, a professor at the Faculty of Political Sciences, also highlighted the significance of the election.
BBC News also reported that in case of an opposition victory, the Belgrade election could affect the local elections in 2024. Political scientist Boban Stojanović said that "the 2023 elections are even more uncertain than the previous ones, especially when it comes to Belgrade" ().
Slogans Debates Party campaigns Serbian Progressive Party In an interview in late October 2023, Šapić called the unification of parties into SPN a demented move. The
Serbian Radical Party, led by
Vojislav Šešelj, announced that it would contest the Belgrade City Assembly elections with SNS. This announcement caused attention in national media. SNS began collecting signatures for its electoral list once the election was called. They submitted it to GIK a day later. GIK confirmed their list on 3 November. Amidst the campaign, Šapić's associate
Aleksandra Čamagić was mentioned in
Balkan Investigative Reporting Network's corruption report in late November, where it reported that Čamagić embezzled approximately during her tenure as Assistant Minister to the
Ministry of Family Welfare and Demography. In response to the report, Veselinović and Obradović from the Temporary Council sent a request for her dismissal, while Šapić criticised the report. On 5 December, Čamagić's mandate as city secretary was extended. While announcing the construction of a new kindergarten and elementary school on 2 December, Šapić was involved in a verbal incident with journalist . A day later, Šapić presented another construction project in
Višnjička Banja, where he mispresented the picture of the future school with that of photo of a
Salt Lake City school in the
United States.
Socialist Party of Serbia The
Socialist Party of Serbia (SPS),
United Serbia, and
Greens of Serbia signed a coalition agreement on 2 November 2023. They announced
Toma Fila as their mayoral candidate. The SPS-led coalition submitted its list to GIK on 2 November, submitting over 4,000 signatures. Fila campaigned on pensioners' interests, improving the representation of women in the executive and legislative branches of the local government, and even development of all parts of Belgrade. Fila has also said that as mayor of Belgrade, he would advocate for the strengthening of workers' rights. Žarko Dronjak of SPS said that the SPS coalition supports the construction of the
Belgrade Metro.
Serbia Against Violence SPN submitted its electoral list to GIK on 12 November. Veselinović named nonpolarised politics, increasing the number of available kindergartens, preserving city's landscape and environment, and improving Belgrade's traffic as some of their main issues. GIK confirmed their list on 13 November.
Đorđe Miketić, a representative of Together in the
National Assembly of Serbia and a candidate for the City Assembly of Belgrade, called for an investigation of assets and cash flows of Šapić, saying that "it remains unknown from which sources mayor Šapić can finance the rental of an apartment in a neighbourhood where the average monthly rent is " (), considering that Šapić's salary as mayor was . The mayoral candidate of SPN, Vladimir Obradović, named traffic problems, local government organising, transparency, air pollution, public security, and environment as key issues. Obradović also said that SPN would form a Fund for Investment in Agriculture to invest in locally produced fruit, protective nets, and storage capacities. Miketić became a target of attacks by Vučić in late November 2023; Vučić called Miketić a "human shame" (). On 27 November, Miketić revealed that an unknown sender sent him threats and Miketić's own intimate photo. Miketić accused the
Security Intelligence Agency (BIA) of being behind the threats. Miketić's
sex tape was leaked on social media on 29 November, with Miketić confirming its authenticity. Earlier in January 2022, Miketić said that his apartment was raided and his hard disks and phones were stolen. Following the broadcast on the same day, Obradović announced that Miketić would leave the coalition's campaign team. Miketić also criticised
Dragan J. Vučićević, the editor of the pro-government
Informer tabloid newspaper, and
Nebojša Krstić, a pro-government political commentator.
National Democratic Alternative Vladimir Štimac, a professional basketball player, also announced that he could take part in the elections. A supporter of
cryptocurrency and
anti-discrimination politics, Štimac was also previously involved in a conflict with the Milenijum tim company which retains close relations with SNS. Štimac confirmed his candidacy once the election was called. Štimac signed an agreement with NADA on 3 November, announcing that he would run on their electoral list. NADA submitted its list to GIK on 12 November and GIK confirmed it a day later. Štimac said that public transport, car parkings, and air pollution would be the coalition's main issues if they had become part of the next local government.
National Gathering SSZ and Dveri submitted its list to GIK on 12 November. They named professor
Ratko Ristić as their mayoral candidate. Ristić has emphasised his opposition to corruption and air pollution, as well as support for improving the public transport and youth and elderly rights in his speech on 12 November. GIK confirmed their list on 13 November.
People's Party Narodna submitted its electoral list on 21 November, announcing
Vladimir Gajić as its mayoral candidate. Gajić has said that he would campaign on issues such as corruption, transport, and air pollution. GIK confirmed their electoral list on 23 November.
DJB–SDS The coalition composed of
Enough is Enough,
Social Democratic Party, and Stolen Babies movement submitted their electoral list on 23 November under the name
Good Morning Belgrade. They named pulmonologist
Dejan Žujović as their mayoral candidate. GIK confirmed their electoral list on 25 November.
Zoran Alimpić, a member of GIK, reported that opposition members of GIK complained about the electoral list's documentation, alleging that the citizens group had falsified signatures of support. As mayor of Belgrade, Vacić said that he would request Belgrade to become
twin cities with cities he sees have positive relations with the Serbian people, naming
Donetsk,
Damascus,
Caracas,
Pyongyang, and
Grozny as some of the cities.
Russian Party The electoral list of the
Russian Party, a political party led by
Slobodan Nikolić that advocates
closer ties with Russia, was confirmed by GIK on 15 November. Nikolić, a resident of
Šabac, was not a candidate, and the list was instead led by Željko Pantić. Lawyer Sofija Mandić and Alimpić alleged that, as members of the extended composition of GIK, the Russian Party electoral list had irregularities, listing incorrectly validated signatures as one of them. The proposal to reject their list was rejected by GIK. Despite being a registered Russian minority party, none of its candidates were Russian.
Others Rade Basta's
European Way Movement (PEP) submitted its electoral list on 22 November. Basta was announced as the ballot holder, while businessman
Zoran Ilić was announced as PEP's mayoral candidate.
Milan Lešnjak, a former footballer, and
Nenad Milić, a former government official, were also announced as candidates on its electoral list. Ilić said that he would campaign on supporting minority rights and pro-European values to Belgrade. Despite Basta not being a
Bunjevac, PEP submitted its electoral list under two Bunjevci minority parties, one of which was
Alliance of Bačka Bunjevci, due to minority parties only needing to collect 1,500 signatures to take part in the election. Several criminal charges were filed against the electoral list due to allegedly falsifying the signatures of support. GIK rejected PEP's electoral list on 23 November due to having falsified signatures of support. Alimpić alleged that the electoral list was filed for the government to have a majority in the GIK. The electoral lists of the
Justice and Reconciliation Party and Serbia in the West, a political coalition consisting of the
New Party–D2SP,
Civic Democratic Forum, Liberals and Democrats, and Glas, and the citizens group "Dad, This is for You" were confirmed by GIK on 26 November. The electoral lists of MI–GIN and
Liberal Democratic Party were accepted by GIK on 27 November. == Opinion polls ==