Breve diccionario etimológico de la lengua castellana

The Breve diccionario etimológico de la lengua castellana (in English, Brief etymological dictionary of the Spanish language) is an etymological dictionary compiled by the Catalan philologist Joan Corominas (1905–1997), and first published in 1961—with revised editions in 1967, 1973, 1993, and 2008—by Gredos in Madrid.

This work has received high marks from critics in the field of Romance philology, and its author has been recognized with the highest honors of Spanish civil society, such as the Premio Nacional de las Letras Españolas, in 1989, which was for the entirety of his work, including both Spanish and Catalan dictionaries.