Castel (surname)

Castel is a surname. Notable people with the surname include:


 * Charles-Irénée Castel de Saint-Pierre (1658–1743), French writer
 * Jean-Gabriel Castel (1928–2023), Canadian law professor
 * Louis Bertrand Castel (1688–1757), French mathematician
 * Moshe Castel (1909–1991), Israeli artist
 * P. Kevin Castel (born 1950), U.S. District Judge, Southern District of New York
 * René Richard Louis Castel (1758–1832), French poet and naturalist
 * Robert Castel (1933–2013), French sociologist