Jean Sicard

Jean Sicard can refer to:


 * Jean Sicard (composer) (later 17th century – early 18th century), a French singer and composer of 17 books of airs
 * Jean Sicard, known as Yann Brekilien (1920–2008), a Breton writer and member of the French Resistance
 * Jean-Athanase Sicard (1872–1929), a French neurologist and radiologist