The Di Rupo Government was the federal cabinet of Belgium sworn in on 6 December 2011, after a record-breaking 541 days of negotiations following the June 2010 elections. The government included social democrats (sp.a/PS), Christian democrats (CD&V/cdH) and liberals, respectively of the Dutch and French language groups. The government notably excluded the New Flemish Alliance (N-VA), the Flemish nationalist party which achieved a plurality and became the largest party. Its absence, together with the unwillingness of Open Vld to enter into an eight-party coalition that included the green parties, caused the government coalition to lack a majority in the Dutch language group. It was the first time that the Belgian prime minister had been openly gay, as Di Rupo became the world's first male openly gay head of government. Elio Di Rupo also became the first native French-speaking prime minister since 1979 and the first prime minister from Wallonia since 1974 and first socialist prime minister since 1974.

Following the Belgian general election held on 13 June 2010, a process of cabinet formation started in Belgium. The election produced a very fragmented political landscape, with 11 parties elected to the Chamber of Representatives, none of which won more than 20% of the seats. The Flemish-Nationalist New Flemish Alliance (N-VA), the largest party in Flanders and the country as a whole, controlled 27 of 150 seats in the lower chamber. The Francophone Socialist Party (PS), the largest in Wallonia, controlled 26 seats. Cabinet negotiations continued for a long time. On 1 June 2011, Belgium matched the record for time taken to form a new democratic government after an election, at 353 days, held until then by Cambodia in 2003–2004. On 11 October 2011, the final agreement for institutional reform was presented to the media. A government coalition was named on 5 December 2011 and sworn in after a total of 541 days of negotiations and formation on 6 December 2011, and 589 days without an elected government with Elio Di Rupo named Prime Minister of the Di Rupo I Government.