Casals (surname)

Casals is a Catalan surname, the plural form of Casal (house). Notable persons with that surname include:
 * Marta Casals Istomin (born 1936), wife of Pablo Casals and former president of Manhattan School of Music
 * Pablo Casals (1876-1973), cellist and conductor
 * Rosemary Casals (born 1948), American professional tennis player
 * Stephen Casals, (born 1968), American artist
 * Toni Casals Rueda (born 1980), Andorran ski mountaineer
 * "Sammy Casals", a police detective in the film Heat portrayed by Wes Studi