Hispanidad (Spanish: [is.pa.niˈðað], "Hispanicity") is an expression with several meanings, loosely alluding to the group of people, countries and communities sharing the Spanish language and displaying a Spanish-related culture. The term traces back to the early modern period but was redefined by Spanish philosopher Miguel de Unamuno in 1909. The term "Hispanity" is a term that regards to a multicultural community of countries of the Spanish Empire.
According to the philosopher and writer Julían Marías, the Spanish American territories were not only colonies but also extensions of Spain that mixed with the native American peoples, with whom Europeans intermarried, creating a multicultural society.
The term has been used in the early modern period and is in the Tractado de orthographía y accentos en las tres lenguas principales by Alejo Venegas, printed in 1531, to mean "style of linguistic expression". It was used, with a similar meaning, in the 1803 edition of the Dictionary of the Spanish Royal Academy as a synonym of Hispanismo (Hispanism), which, in turn, was defined as "the peculiar speech of the Spanish language".
In the early 20th century, the term and the were revived, with several new meanings. Its reintroduction is attributed to Unamuno in 1909, who used the term again on 11 March 1910, in an article, La Argentinidad, published in a newspaper in Argentina, La Nación. He compared the term to other similar expressions: , , and .
Unamuno linked the concept to the multiplicity of peoples speaking the Spanish language, which encompassed in turn his idea of La Raza, gave it an egalitarian substrate and questioned the very status of motherland for Spain; he claimed the need of approaching Spanish American republics in terms of sisterhood (opposing "primacies" and "maternities").