Blasius

Blasius may refer to:


 * various saints, including Saint Blaise (the French form of Blasius)
 * August Wilhelm Heinrich Blasius (1845–1912), German ornithologist
 * Blasius of Parma (c. 1345–1416), natural philosopher, born in Parma
 * Frédéric Blasius (1758–1829), French opera composer and conductor
 * Gerard Blasius (1627–1682), Dutch anatomist
 * Heinrich Wilhelm Blasius (1818–1899), German meteorologist
 * Joan Blasius (1639–1672), Dutch playwright, Gerhard's younger brother
 * Johann Heinrich Blasius (1809–1870), German zoologist
 * Jörg Blasius (born 1957), German sociologist
 * Paul Richard Heinrich Blasius (1883–1970), German physicist
 * Rudolf Blasius (1842–1907), German physician, bacteriologist, naturalist and ornithologist