Alcalá-Galiano is a surname shared by several notable people:
Paternal usage (1757–1810), Spanish mathematician, economist, and writer Dionisio Alcalá Galiano (1760–1805), Spanish naval officer, cartographer, and explorer Antonio Alcalá Galiano (1789–1865), Spanish politician and writer; Minister of the Navy (1836) and Minister of Public Works (1865) (1864–1863), 6th Marquess of San Juan de Piedras Albas Emilio Alcalá-Galiano (1831–1914), 4th Count of Casa Valencia Antonio Alcalá Galiano (1842–1902) Álvaro Alcalá Galiano y Vildósola (1873–1936), count of Real Aprecio, Spanish painter and decorative artist (1883–1936), 1st count of Romilla, Spanish politician Álvaro Alcalá-Galiano y Osma (1886–1936), marquis of Castel Bravo, Spanish writer, literary critic, historian, and journalist
Maternal usage Juan Valera y Alcalá-Galiano (1824–1905), Spanish realist author, writer and political figure