Which street in the French Quarter is named for the housing of the Spanish Army in colonial New Orleans?

The street named for the housing of the Spanish Army in colonial New Orleans is Barracks Street. During the period of Spanish rule in the late 18th century, Barracks Street was associated with the military presence that was necessary for the defense and governance of the city. The name "Barracks" directly reflects its historical significance, as it served as the site where soldiers were stationed. This connection to the history of the Spanish colonial period adds a layer of cultural and historical context to the street, making it an important part of the narrative of New Orleans' development.

The other streets mentioned do not have this specific historical linkage to the Spanish Army. Bourbon Street is famed for its vibrant nightlife and cultural significance, particularly in relation to music and festivities. Decatur Street runs along the river and is known for its views and commercial establishments, while Chartres Street is notable for its historic architecture and cuisine but does not carry the same military connotation as Barracks Street. Thus, Barracks Street is the only answer that accurately corresponds to the housing of the Spanish Army in colonial New Orleans.