Nicasius

Nicasius was a Roman cognomen, whose variants include Nicasio, Nicaise, and Necaise. It can refer to:

Saints

 * Nicasius of Rheims (5th century)
 * Nicasius of Dijon (4th century)
 * Nicasius, Quirinus, Scubiculus, and Pientia (3rd century), martyrs
 * Nicasius of Sicily (Nicasio Burgio, Nicasius Martyr, Nicasius de Burgio) (died 1187), martyred Knight Hospitaller

Other

 * Nicasio, California, a census designated place in Marin County
 * Nicasius le Febure
 * Nycasius de Clibano (fl. 1457–1497)
 * Nicasius Russell (died 1646), goldsmith to Anne of Denmark
 * Nicasio Silverio (born 1930), Cuban swimmer
 * Nicasius, first bishop of Rouen (c. 250)
 * Alberto Nicasio (1902–1980), Argentinian artist
 * Juan Nicasio (born 1986), Dominican baseball pitcher
 * Nicasius de Vries (born 1995), Dutch racing driver
 * Viviane Nicaise (born 1952), Belgian cartoonist and colorist