Cei

Cei is a surname, and may refer to:


 * Giuseppe Cei (1889–1911), Italian aviation pioneer
 * Giuseppe Cei (bishop) (1640–1704), Roman Catholic prelate
 * Idilio Cei (1937–1996), Italian football goalkeeper
 * Luca Cei (born 1975), Italian racing cyclist
 * Pina Cei (1904–2000), Italian stage, film and television actress
 * Sir Kay, in Arthurian legend