Alcalá (Spanish), Alcalà (Catalan), Alcala and the derivative Arcala are all transliterations of the Arabic word al-qal'a (القلعة), meaning "the citadel" or "fortification". Alcalá, Alcalà or Alcala may also refer to:
- redirect Alcalá
Alcalá and Alcala (lacking diacritical marks) are surnames shared by several notable people:
- Macedonio Alcalá (1831–1869), Mexican violinist, pianist and songwriter
- Félix Enríquez Alcalá (born 1951), American television and movie director, cinematographer and producer
- Kathleen Alcalá (born 1954), American author
- Luis Espinosa-Alcalá (1932-2009), Mexican poet, songwriter, and music promoter.
- Raúl Alcalá (born 1964), Mexican professional and Olympic road racing cyclist
- Blanca Alcalá (living), Mexican local politician
- Niceto Alcalá-Zamora, president of Spain between 1931 and 1936
- Alfredo Alcala (1925-2000), Filipino comic book artist
- Larry Alcala (1926–2002), Philippine cartoonist and illustrator
- Nilo Alcala (born 1978), Philippine composer and chorister
- Joshua Alcala (born 1984), American footballer
- Dora Alcala (living), American local politician
- Carlos Alcala, Lawyer and Living Hispanic Rights Activist
- Santo Alcala (born 1952), Dominican baseball player playing in Canada
- Rodney James Alcala (born August 23, 1943), Convicted rapist and serial killer.
Alcalá (Tomina) is a town in Bolivia. In 2010 it had an estimated population of 1094.