Cassian may refer to: Places Cassian, Wisconsin People Historical St. Cassian of Imola (4th-century–363), Christian martyr St. Cassian of Autun (died 350), Christian bishop of Autun St. John Cassian the ascetic (360–435), French Christian saint and author St. Marcellus the Centurion, martyr of Tingis, sometimes called "Cassian" Cassian Sakowicz (1578–1647), Orthodox activist and, later, a Catholic theologian, writer, and polemicist Cassian of Tangier (3rd-century–298), Christian saint Modern Cassian Elwes (born 1959), British film producer Ed Cassian (1867–1918), former Major League Baseball player George Cassian, (1932-1979) Canadian yacht designer Nina Cassian (1924–2014), Romanian writer Brigant Cassian (1889–1957), priest and education worker in Hong Kong In fiction Cassian Andor, a character in the Star Wars franchise film Rogue One Cassian, a character in Sarah J. Maas's series “A Court of Thorns and Roses” Other uses Cassian (stage), a geochronologic name in Italian stratigraphy Sabinian school, known as the Cassians A 1942 GRT tanker owned by Panama and named SS Cassian Sailor from 1956 to 1960