The Spitzenkandidat process (German: [ˈʃpɪt͡sn̩kandiˌdaːt] ^ⓘ, German for 'lead candidate') is the method of linking the choice of President of the Commission to the outcome of the European Parliament elections, with each major European political party (not to be confused with the political groups of the European Parliament) nominating their candidate for Commission President prior to the Parliamentary elections. The Spitzenkandidat of the largest party (or the one able to secure the support of a majority coalition) would then be proposed by the European Council to the European Parliament for election to the Commission Presidency.

This process was first followed in 2014, though its legitimacy was contested by some of the members of the European Council (with the UK and Hungarian Prime Ministers voting against the nomination of the EPP's Spitzenkandidat Jean-Claude Juncker).

According to the treaties, the President of the European Commission is nominated by the European Council. Since the entry into force of the Lisbon Treaty in 2009, this nomination has to be made in light of the results of the European Parliament election, and the nominee has to be backed by a majority of Members of the European Parliament in a vote to elect him/her as president.

Already in 2004 the centre-right EPP argued that, as the largest party, an EPP member should be nominated, and indeed the European Council put forward José Manuel Barroso.

The approach of national governments was traditionally to appoint the various high-profile jobs in EU institutions (European Council president, High Representative and so on) dividing them accordingly along geographic, political and gender lines. This sometimes led to fairly low-profile figures, avoiding candidates who had either made enemies of some national governments or who were seen as potentially challenging the council or certain member states.

Unease had built up around the secretive power play that was involved in these appointments, leading to a desire for a more democratic process. At the end of 2009, the Treaty of Lisbon entered into force. It amended the appointment of the Commission President in the Treaty on European Union Article 17.7 to add the wording "taking into account the elections to the European Parliament", so that Article 17.7 now included the wording

Taking into account the elections to the European Parliament and after having held the appropriate consultations, the European Council, acting by a qualified majority, shall propose to the European Parliament a candidate for President of the Commission. This candidate shall be elected by the European Parliament by a majority of its component members. If he does not obtain the required majority, the European Council, acting by a qualified majority, shall within one month propose a new candidate who shall be elected by the European Parliament following the same procedure.

In 2013, in preparation for the European election of 2014, Martin Schulz, then President of the European Parliament campaigned for European political parties to name lead candidates for the post of President of the European Commission; his own party, the centre-left Party of European Socialists named Schulz as its lead candidate (German: Spitzenkandidat). The EPP held an election Congress in Dublin, where Jean-Claude Juncker beat his rival Michel Barnier and subsequently ran as the EPP lead candidate. The European Left Party (GUE/NGL) chose Alexis Tsipras as candidate. The Alliance of Liberals and Democrats for Europe Party and the European Green Party also selected lead candidates. The Alliance of European Conservatives and Reformists did not name a candidate, objecting to the principle of Spitzenkandidaten and its "tenuous" basis in law. The German term for lead candidates caught on, and they became known informally as Spitzenkandidaten.