This is alist ofEuropean commissioners by member state of theEuropean Union. Each name is a member of theEuropean Commission and hold a specific portfolio within the college, led by thepresident of the European Commission. They operate similarly as European-level equivalents tonational government ministers. Eachmember state of the European Union has the right to a single commissioner (before the Barroso I Commission in November 2004, the five largest states—France, Germany, Italy, Spain and the United Kingdom—were granted two) and appoints them in consultation with the president.

The accession ofRomania andBulgaria in 2007 raised the number of commissioners from 25 to 27, and after the accession ofCroatia in 2013 the number of commissioners raised to 28. The United Kingdom left the EU on 31 January 2020, and did not nominate a commissioner when the Juncker Commission ended on 1 December 2019.

Below is a list of all past and present European commissioners according to the member state they were nominated by, including the presidents of theEuropean Coal and Steel Community andEuropean Atomic Energy Community. The colours indicate their European political family background (blue for conservative or centre-right, mainly theEuropean People's Party; red for left-wing or social democrats, mainly theParty of European Socialists; yellow for centrist or liberals, mainly theAlliance of Liberals and Democrats for Europe Party; green for green politicians, mainly theEuropean Green Party; grey for independents or unknowns; and their pan-European predecessors).

A number of commissioners were formally nominated and assigned portfolios before being withdrawn after their hearing with theEuropean Parliament, with the exception of Thorvald Stoltenberg, who withdrew after the rejection of Norway'saccession referendum.^{[citation needed]}

At the end of the Juncker Commission, some were initially named by the member states to succeed commissioners who took seats in theEuropean Parliament before an agreement to not fill the seats under the start of the next commission.^{[citation needed]}

The Von der Leyen I Commission requested member states name female and male candidates in order to have gender parity. She would then chose the one candidate to be formally nominated, or request new names. She usually continued her request for female and male candidates for vacancies throughout her first commission.^{[citation needed]}