Cassiano

Cassiano may refer to:

Given name:
 * Cassiano Conzatti (1862–1951), Italian-born botanist, explorer and pteridologist, director of the Oaxaca Botanical Garden in Mexico
 * Cassiano Leal (born 1971), former international freestyle swimmer from Brazil
 * Cassiano Dias Moreira (born 1989), Brazilian forward
 * Cassiano dal Pozzo (1588–1657), Italian scholar and patron of arts
 * Cassiano Ricardo (1895–1974), Brazilian journalist, literary critic, and poet
 * Cassiano Mendes da Rocha (born 1975), former Brazilian football player

Surname:
 * Dick Cassiano, halfback in the National Football League
 * Sérgio Cassiano (born 1967), Brazilian jazz composer, percussionist, writer, producer, and bandleader

Stage name:
 * Cassiano (1943–2021), Brazilian singer-songwriter and guitarist

Places:
 * 18335 San Cassiano, minor planet discovered September 19, 1987
 * San Cassiano, town and commune in the Italian province of Lecce and region of Apulia in south-east Italy
 * San Cassiano, Venice, 14th-century Roman Catholic church in the San Polo sestiere of the Italian city of Venice
 * San Cassiano Formation, geologic formation on the Southern Alps (Northeast of Italy) in the Dolomites