Pro-European political parties in Croatia

The Croatian Peasant Party (Croatian: Hrvatska seljačka stranka, HSS) is an agrarian political party in Croatia founded on 22 December 1904 by Antun and Stjepan Radić as Croatian Peoples' Peasant Party (HPSS). The Brothers Radić believed that the realization of Croatian statehood was possible within Austria-Hungary, but that it had to be reformed as a Monarchy divided into three equal parts – Austria, Hungary and Croatia. After the creation of Kingdom of Yugoslavia in 1918, the Party requested for the Croatian part of the Kingdom to be based on self-determination. This brought them great public support which culminated in 1920 parliamentary election when HPSS won all 58 seats assigned to Croatia.

The Croatian Democratic Union (Croatian: Hrvatska demokratska zajednica, lit. 'Croatian Democratic Community', HDZ) is a major conservative, centre-right political party in Croatia. Since 2016, it has been the ruling political party in Croatia under the incumbent Prime Minister Andrej Plenković. It is one of the two major contemporary political parties in Croatia, along with the centre-left Social Democratic Party (SDP). It is currently the largest party in the Sabor with 55 seats. The HDZ governed Croatia from 1990 before the country gained independence from Yugoslavia until 2000 and, in coalition with junior partners, from 2003 to 2011, and since 2016. HDZ is a member of the Centrist Democrat International, International Democracy Union, and the European People's Party, and sits in the European People's Party Group in the European Parliament. HDZ is the first political party in Croatia to be convicted of corruption.

The Croatian People's Party – Liberal Democrats (Croatian: Hrvatska narodna stranka – Liberalni demokrati or HNS – LD) is a liberal political party in Croatia.

The Civic Liberal Alliance (Croatian: Građansko-liberalni savez, abbr. GLAS - lit. Voice/Vote) is a liberal political party in Croatia. The party was founded by four former Croatian People's Party (HNS) MPs led by Anka Mrak Taritaš who were dissatisfied with HNS entering a coalition with the Croatian Democratic Union (HDZ) and supporting the cabinet of Andrej Plenković since June 2017.

The Social Democratic Party of Croatia (Croatian: Socijaldemokratska partija Hrvatske, abbr. SDP) is a social democratic political party in Croatia. The SDP is anti-fascist, progressive, and strongly pro-European. The SDP was formed in 1990 as the successor of the League of Communists of Croatia, the Croatian branch of the League of Communists of Yugoslavia, which had governed Croatia within the Socialist Federal Republic of Yugoslavia since World War II.

The Independent Democratic Serb Party (Serbo-Croatian: Самостална демократска српска странка, Samostalna demokratska srpska stranka, SDSS) is a social-democratic political party in Croatia representing the interests of the Croatian Serbs. It holds progressive, pro-European stances and is generally considered a centre-left party.

The Social Democrats (Croatian: Socijaldemokrati) is a Croatian centre-left political party founded in 2022. The party was preceded by a parliamentary group of the same name that broke away from the Social Democratic Party of Croatia in October 2021.

We Can! – Political Platform (Croatian: Možemo! – politička platforma) is a left-wing, green political party in Croatia formed by local green and leftist movements and initiatives in order to act on the national level for European Parliament and parliament elections. After the 2021 local elections in Zagreb, they became the largest political party in the Zagreb Assembly, winning 23 seats in total. Their mayoral candidate Tomislav Tomašević won a landslide victory on 31 May 2021.

The Democrats (Croatian: Demokrati) are a minor centre-left Croatian political party founded by Mirando Mrsić. The party was founded on the 20 October 2018 in Zagreb. It was officially registered with the Ministry of Public Administration on 27 November 2018.

The Istrian Democratic Assembly (Croatian: Istarski demokratski sabor, Italian: Dieta democratica istriana or IDS-DDI) is a centre to centre-left, regionalist, liberal political party in Croatia primarily operating in Istria County.