Cass (surname)
Cass is the surname of:
- Amelia Cass, British para-cyclist
- Annie Cass, later Annie Pearson, Viscountess Cowdray, British philanthropist and suffragist
- Barbara Cass-Beggs, Canadian folk song collector, singer and teacher
- Bettina Cass, Australian sociologist and social policy adviser
- Brian Cass, British business executive
- David Cass, American economist
- Dick Cass, President of the National Football League's Baltimore Ravens
- Eleanor Baldwin Cass, American fencer
- Frank Cass, British publisher of books and academic journals
- Frederick Cass, Canadian politician
- George Washington Cass, American industrialist and president of the Northern Pacific Railway
- Godfrey Cass, Australian actor
- Harriet Cass, British radio broadcaster
- Henry Cass, English film director
- Hilary Cass, British physician
- John Cass, English politician and philanthropist
- Lewis Cass, American Democratic presidential nominee in 1848, Secretary of State, Secretary of War, Michigan Governor
- Lewis Cass Jr., American diplomat
- Maurice Cass, character actor
- Melnea Cass, American community and civil rights activist
- Moss Cass, Australian former politician
- Oren Cass, American public policy commentator and political advisor
- Peggy Cass, American actress, comedian and game show panelist
- Robin Cass Canadian film and television producer
- Rodney Cass, English cricketer
- Ronald Cass, screenwriter and composer
- Thomas Cass (colonel), Union colonel in the American Civil War
- Thomas Cass (surveyor), pioneer surveyor in New Zealand