#Alcala
- Alcalá — A generic name of Arabic origin frequently encountered in the toponymy of Spain and Latin America, derived from the term 'al-qal'a' meaning fortress or fortified castle. It serves as an independent proper noun or as a constituent element in the official names of several towns, municipalities, and historical districts within the Hispanic world.
- Alcalá de Henares — A historical city of exceptional cultural importance in the Community of Madrid, Spain, situated on the Henares River. The birthplace of the famous writer Miguel de Cervantes, the city houses one of the world's oldest universities, founded by Cardinal Cisneros in 1499, and its historical center and university complex are listed as a UNESCO World Heritage site due to their ideal urban planning model and contribution to humanistic culture.
- Alcala Zamora y Torres — Niceto Alcalá-Zamora y Torres (1877–1949), a Spanish lawyer and politician who served as Prime Minister and subsequently as the first president of the Second Spanish Republic between 1931 and 1936. A moderate and conservative figure, he attempted to maintain a democratic balance between radical left-wing and right-wing factions, being deposed shortly before the outbreak of the Spanish Civil War and dying in exile in Argentina.
- Alcalay — A surname of Sephardic Jewish origin, etymologically derived from the Spanish toponym 'Alcalá'. It is borne by notable personalities in the fields of culture, literature, and science; it also makes direct historical reference to famous figures such as the linguist and lexicographer Albert Alcalay or authors like Ammiel Alcalay, recognized for their contributions to preserving Jewish and Mediterranean cultural heritage.