Flemish Brusselian (; ), also known as Brussels Flemish or Brussels Vloms (Brabantian variant of vlaams; "Flemish"), is a traditional dialect native to Brussels, Belgium, a distinct variety of Brusselian. It is a heavily-Francisised Brabantian Dutch dialect that incorporates a sprinkle of Spanish loanwords dating back to the rule of the Low Countries by the Habsburgs (1519âÂÂ1713). It is distinct from written standard Dutch in vocabulary, grammar, and pronunciation.
The Flemish Brusselian dialect developed from a Brabantian dialect spoken by the first inhabitants, located north of the RomanceâÂÂGermanic language border. From the city's early history, two languages coexisted: the local Brabantian dialect and French, initially the language of the nobility and later increasingly of the bourgeoisie. Over time, French gained prominence, especially during the Burgundian, Spanish, and Austrian periods, and became the dominant prestige language. After the French annexation of the Southern Netherlands, Dutch largely lost official status and survived mainly in local dialects. Attempts to restore Dutch under the United Kingdom of the Netherlands and after Belgian independence in 1830 met with limited success, and Brussels gradually diverged from other Flemish cities, with French usage steadily rising.
During the 19th and much of the 20th centuries, there was little interest in the Dutch dialect spoken in Brussels, as the city lacked a Dutch-speaking intelligentsia. Some official support emerged only gradually with the federalisation of Belgium, which gave the Dutch-speaking community authority over cultural matters, including language. The only major early study was G. Mazereel's , published in 1931 by the Koninklijke Vlaamse Academie voor Taal- en Letterkunde. Mazereel began studying Brusselian in 1917 and initially focused on the dialect of Ixelles. While detailed, his work was of lower quality than contemporary studies on other Brabantian dialects.
Other early contributors included Louis Quievreux, author of a , which reached a fifth edition in 1985 with grammar and spelling notes. Authors such as , Maurice Lefèvre, Leopold Pels, Adelin d'Agne, and documented Brussels' speech and types, with Garnir publishing before 1914. Jean d'Osta later described Brussels' dialect and social types in newspapers and contributed a grammar and spelling appendix to Quievreux's dictionary. A French-language association, the , published a FrenchâÂÂMarollian bilingual word list with support from the Brussels-Capital Region.
To preserve and promote the dialect, the was founded on 17 April 1991. It studies and documents Flemish Brusselian, publishes the quarterly journal , established a standard spelling in 1997, and issued key works including Mazereel's studies and the (2003). The academy supports audio recordings, theatre performances, literary competitions, and local initiatives such as the cabaret group and street name signage in the local dialect. It collaborates with other Brabant dialect organisations and contributed to the 1999 reference spelling for all Brabantian dialects. Local branches such as and further promote community engagement, performances, and education in Flemish Brusselian.
From 2002 onwards, the academy expanded into theatre through the , presenting classic and contemporary works in Flemish Brusselian. Their first production, Bossemans en Coppenolle, a parody of the 1930s bourgeois milieu, attracted over 7,000 viewers. In January 2003, De Traafiest van Mademoiselle Beulemans, a Brussels comedy originally performed in 1910, ran for thirty-eight shows with more than 13,000 attendees, praised for its faithful representation of the dialect and character. A subsequent production, (a Brussels adaptation of Francis Veber's Le Dîner de Cons), marked a shift towards contemporary repertoire, situating non-Brussels works within a fully Brussels context.
In 2013, the Academie van het Brussels, the Brussels Volkstejoêter, and the dialect support centre Ara! merged to become . The previous organisations were dissolved, with the unification encouraged by the Flemish Community Commission (VGC) to improve transparency, coordinate strengths, and provide greater support for Flemish Brusselian heritage. In February 2021, be.brusseleir changed its name to Brusseleir!. On 15 December 2021, Flemish Brusselian was added to the inventory of intangible cultural heritage of the Brussels-Capital Region together with Beulemans, Marollian and Bergades.
An example of Flemish Brusselian is:
For the popular comic series The Adventures of Tintin, the Brussels author Hergé modelled his fictional languages Syldavian and Bordurian on Flemish Brusselian, and modelled many other personal and place-names in his works on the dialect (e.g. the city of in the fictional Middle Eastern country of Khemed comes from the Brusselian phrase for "I'm cold"). Bordurian, for example, has as one of its words the Flemish Brusselian-based meaning "mister" (cf. Dutch ). In the original French, the fictional Arumbaya language of San Theodoros is another incarnation of Flemish Brusselian.