|Founded||11 May 1964|
|Headquarters||Chaussée de Charleroi 127
|Political position||Centre to centre-right|
|European Parliament group||No MEPs|
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|Parliament of the French Community||
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DéFI is a regionalist, liberal and social liberal political party in Belgium whose aim is expansion of the linguistic rights of French-speakers in and near the Brussels region. The party is led since 1995 by Olivier Maingain, a member of the Chamber of Representatives. The party's current name, DéFI or Défi, is a backronym of Démocrate, Fédéraliste, Indépendant (literally, "Democratic, Federalist, Independent") meaning "challenge" in French which was adopted in 2016.
The party was founded as the Democratic Front of Francophones (Front Démocratique des Francophones, FDF) on 11 May 1964 as a response to the language laws of 1962. The party had instant success in Brussels: it first contested parliamentary elections one year later, where it won one senator and 3 seats in the Chamber of Representatives for the constituency of Brussels. Its number of seats increased further in the subsequent parliamentary elections. The party also dominated Brussels' municipal politics until 1982.
Initially the party cooperated with the Walloon Rally. From 1977 until 1980, the FDF participated in the federal governments led by Leo Tindemans and subsequently Wilfried Martens. From 1992, the FDF regularly competed in electoral alliance with the larger Liberal Reformist Party (PRL). In 2002 the PRL, the FDF, the MCC and the PFF formed the Reformist Movement (MR), a closer alliance of Francophone liberal parties.
In January 2010 the party name was amended to Francophone Democratic Federalists (Fédéralistes Démocrates Francophones). In September 2011, the FDF decided to leave the alliance over disagreements with MR president Charles Michel on the agreement concerning the splitting of the Brussels-Halle-Vilvoorde district during the 2010–2011 Belgian government formation.
The party adopted its current name, DéFI, in November 2015.
The party advocates the extension of the bilingual status of Brussels to some municipalities in the Brussels Periphery (in Flemish Brabant, Flemish Region), where a majority of the population is French-speaking, but the official language is Dutch, and pushes for the rights of French-speakers in Flemish municipalities to use French instead of Dutch in dealing with Dutch-speaking officials. Both stances are opposed by Flemish parties, who say that French-speaking residents of the Flemish Region should respect and learn the majority language and argue that the Francization of Brussels should not further itself into the Region.
Notable elected members include:
- Véronique Caprasse, member of the Chamber of Representatives for Brussels and former mayor of Kraainem (2013–2015)
- Bernard Clerfayt, mayor of Schaerbeek since 2000 and member of the Brussels Parliament
- Didier Gosuin, Minister in the Vervoort II Brussels Government (2014–2019) and mayor of Auderghem
- Cécile Jodogne, Secretary of State in the Vervoort II Brussels Government (2014–2019)
- Olivier Maingain, DéFI leader, member of the Chamber of Representatives for Brussels since 1991 and mayor of Woluwe-Saint-Lambert since 2006
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