The term French Louisiana ( ; ) refers to two distinct, historical regions: First, to historic French Louisiana, comprising the massive, middle section of North America claimed by France during the 17th and 18th centuries; and, Second, to modern French Louisiana, which stretches across the southern third of the present-day State of Louisiana, also called Acadia, Cajun Country, or Creole Country.

Each term has been in use for many years.

In contemporary cultural discourse, Louisiana French (particularly Cajun) culture has multiple dimensions. Firstly, concerning its origins, it is widely regarded as a culture of mixed origins. It is not the culture of a single ethnic group but was jointly shaped by the different immigrant groups who historically settled in Louisiana, including the original French settlers, Acadians, Spanish, Irish, as well as Black and White Creoles, among others. Furthermore, other Creole groups and Native American groups also made contributions to the region's culture, for instance, the use of filé in the culinary specialty gumbo originates from Native Americans, and these collectively form the region's unique cultural mosaic.

Against this backdrop of mixed culture, another definition is the emphasis placed by many Cajuns on the "blood" relationship with the Acadians from the Canadian Maritimes Provinces, which gives rise to a strong sense of belonging to the broader Acadian diaspora, transcending geographical boundaries.

French Louisiana, district of New France

French Louisiana was one of the districts of New France and included the future territory of Arkansas, Illinois, Louisiana, and Missouri. Beginning in 1682 this region, known in French as la Louisiane française, The contemporary French term for the U.S. state of Louisiana is "Louisiane", with the larger colonial region called "la Louisiane française". However, in colonial writings the colony would be called "La Louisiane" (before the state was created from the lower portion of the region), just as English used "Louisiana" for both the region/state names, rather than "French Louisiana Purchase" (no such term). functioned as an administrative district of New France. It extended from the Gulf of Mexico to Vincennes, now in Indiana. France ceded the Western part of the region to Spain and the Eastern part to Britain in 1763 after the French and Indian War. They regained the Western territory by treaty in 1800, and sold it to the United States in 1803 through the Louisiana Purchase.

Following the Louisiana Purchase and the Governance Act, the vast territory of colonial French Louisiana became part of the United States. While the political entity of French Louisiana ceased to exist, French language, culture, and identity persisted, particularly concentrated in the southern part of the present-day state of Louisiana, Despite American governance, southern Louisiana remained francophone, dominated by diverse French and French Creole communities, including white Creoles, Cajuns, creole free people of colour, and French speaking enslaved people. This region, which is often referred to today as "French Louisiana" or "Cajun Country" and "Creole Country", is known for its cultural heritage. "Creole and Cajun culture are unique examples of Louisiana’s eclectic history”. Modern French Louisiana is separate from the historical administrative district that once stretched across the American Midwest.

Modern French Louisiana

Greater New Orleans and the twenty-two parish cultural region known as Acadiana compose present-day 'French Louisiana'. Although the Louisiana French (Cajuns & Creoles) dominate south Louisiana's cultural landscape, the largest French-speaking group in the state is thought to be the United Houma Nation Native American tribe. Other important ethnic groups in the region include African Americans, Isleños, descendants of German Coast settlers, Filipinos, non-French related Caucasian American (including Irish Americans and Italian Americans), and various immigrant groups, including Vietnamese, Laotians, and a growing number of Hispanics. In addition, French Louisiana influences can be found in cities adjacent to the region, such as Alexandria and Baton Rouge.

French Louisiana cultural regions Modern French Louisiana refers to the region in southern Louisiana where French-derived culture and language are still prominent. This area is described as a roughly triangular region with an apex below Alexandria and a base extending from New Orleans to Lake Charles. Within this larger triangular area, there are two main French-derived cultural regions:

The area west of the Atchafalaya Swamp is located in Louisiana's coastal wetlands and southwest prairie. It is a region where French-derived groups are dominant, including Acadians, French nationals, French royalists, etc. This region is commonly known as "Cajun Country" or officially called "Acadiana". The descendants of Acadians (known as Cajuns) historically settled in this region. Major parishes within Acadiana include Lafayette, St. Landry, Iberia, St. Martin, Acadia, and Vermilion.

Although Cajun culture is a product of the mixture of various immigrant groups, many Cajuns emphasize their Acadian ancestry. Its center is located "around Lafayette”. Historically, before 1919, this area was often called "Teche Country" named after Bayou Teche, which runs through the region. These bayous and waterways were the main transportation routes before roads were built. The cultural history of Southwest Louisiana (which is part of this region) indicates that in the early 20th century, the area had a unified, multiracial Creole culture and identity, but later split along racial lines under the influence of Americanisation. The "Acadianized identity and culture" emphasizing white Acadian ancestry emerged in the first half of the 20th century.

The area east of the Atchafalaya Swamp is along the Mississippi River and Bayou Lafourche, between Baton Rouge and New Orleans.  Compared to the western region, this area is more cosmopolitan, influenced by people from the West Indies (including Haitian refugees), Germans, Spaniards, and Americans from up the Mississippi River (“Kaintucks”). This area also includes French or Creole language speakers who are Catholic.

The New Orleans metropolitan region, encompassing Orleans Parish and adjacent Mississippi River parishes, has long been associated with Louisiana Creole heritage and Afro-French cultural traditions.

New Orleans is one of the centres of this area, described as Creole cultural centre, influenced by Haitian Creole culture. Near New Orleans live French or Creole-speaking Catholic peasants.

Modern use of Louisiana French Louisiana French is a variety of French used in the state of Louisiana in the United States. In contemporary times, Louisiana French is undergoing the process of “language death”, but at the same time, its culture and community are also showing efforts towards revitalisation.

The endangerment of Louisiana French Louisiana French does not simply originate from Canadian Acadian French. It is a product of the contact, “dialect mixing”, and "levelling/convergence" of various French varieties during the colonial period. These varieties came from mainland France, Quebec, Acadia, Saint-Domingue and other places. This multi-source mixing makes Louisiana French more like a "patchwork regio-lect”.

Louisiana French is in the process of gradually dying out. After the 1921 state constitution stipulated that only English could be used for teaching in public schools, students speaking French and Creole were punished and discriminated against, which accelerated the language decline. People were told their French was "not authentic" and not worth keeping. According to the 2013 estimate, there are approximately 100,000 speakers. This number is a decrease from around 1 million francophone speakers in the late 1960s. From 1980 to 2023, the share of Louisiana French spoken at home declined from a peak of around 6.5% to below 3.5%, showing a long-term downward trend. Its status as a "home language" is gradually being replaced by Spanish and other emerging immigrant languages. Moreover, Louisiana French has long been in contact with English. English is the dominant language and the high-status language in society. This asymmetrical linguistic environment has also affected the gradual decline of Louisiana French.

In the context of endangerment, the group known as "semi-speakers" has emerged; their language acquisition is often incomplete, and they show different linguistic features and greater variability compared to fluent native speakers.

The older generation before World War II typically used French or related Creole as their native tongue. People who grew up in the "60s and 70s" mainly learned English at home. The younger generation (Millennials, etc.) mostly grew up in English-speaking environments, and if they learned French, it was usually out of conscious choice or through school programs.

Kouri-Vini In Louisiana, there is another related language, Kouri-Vini, also known as Louisiana Creole. It is an independent endangered language, mixed from French vocabulary of the French colonial period and African language influences. Kouri-Vini mainly developed in historical sugarcane growing areas, was used by white and black people regardless of race, and was more related to geographic regions than race. The number of Kouri-Vini speakers is much smaller than the number of Louisiana French speakers, speakers number “far fewer than 10,000”.

The revitalisation of Louisiana French French revitalisation activities are ongoing in the Louisiana region. In 2020, "there are 34 immersion programs in 14 parishes across Louisiana with more than 5,000 students enrolled". There are also immersion programs for adults. Teachers in these schools may come from different French-speaking countries; teaching local French varieties is also encouraged. French is not just a language, but also an important vehicle for carrying the unique culture of Louisiana.

New French media platforms are emerging, such as the digital newspaper Le Louisianais (publishing content in both Louisiana French and Kouri-Vini), and the television channel Télé-Louisiane. Radio station KRVS also has French programming.

People use and promote French through regular gatherings (such as French conversation at the Blue Moon Saloon), cultural festivals (such as Festival Acadiens et Créoles), to use and promote French. Artists, musicians, and writers also promote the language through their works.

Louisiana has become an observer member of the Organisation Internationale de la Francophonie (OIF).

Cultural heritage

Architecture

Louisiana's architectural heritage is a component of its unique culture, especially the Creole style architecture formed under the influence of French and Spanish colonial periods and the Caribbean region. This architectural style does not simply replicate the house styles of mainland France or Spain, but rather, while drawing on various cultural sources (including France, Britain, Spain, Canada, and the Caribbean region), it adapted to the unique subtropical humid climate and geographical environment of frequent floods. For example, the design of raising the main living area above the ground (usually a few feet to a full story high) is a main feature developed to cope with damp soil and the threat of floods. Early Creole construction methods also reflected cultural fusion. For instance, a mixture called bousillage was often used for wall infill a method that combined French building techniques with local Native American use of earth and plant materials.