Cass is the given name of:
People: Cass Ballenger (1926–2015), U.S. Representative, 1986–2005 Cass Browne (born 1971), English rock drummer Cass Canfield (1897–1986), American publishing executive Cass Daley (1915–1975), American actress, singer and comedian Cass Elliot (1941–1974), American singer with the Mamas & the Papas, born Ellen Naomi Cohen Cass Fox (born 1982), English singer who originally performed as "Cass" Cass Gilbert (1859–1934), American architect Cass McCombs (born 1977), American singer, songwriter and musician Cass Michaels (1926–1982), American Major League Baseball player Cass Pennant (born 1958), English writer and former football hooligan Cass Phang (born 1969), retired Cantopop singer from Hong Kong Cassandra Ponti (born 1980), Filipino actress and contestant in Pinoy Big Brother Cass Sunstein (born 1954), American legal scholar and professor
Fictional characters: the title character of the Sinclair Lewis novel and film Cass Timberlane Cass Winthrop, a character in the American television soap opera Another World Castiel (Supernatural), a character in the American television series Supernatural