Betty X (born Zoe Pierce
Gibson), American musician, artist, and activist
Betty Louise McCollum
U.S. Congresswoman from Minnesota
Betty Boo
stage name of Alison Moira Clarkson, English pop singer
Betty Who
stage name of Jessica Anne Newham, Australian singer
Sibyl Ludington
American revolutionary
Sibyl Sanderson
American operatic soprano
Sibyl Buck
American musician and model
Sibyl Mary Hathaway
Dame of Sark