Elizabeth Thomas may refer to:
- Elizabeth Thomas (poet) (1675–1731), British poet
- Elizabeth Thomas (poet/novelist) (1770/1–1855), British novelist and poet
- Elizabeth Thomas (Egyptologist) (1907–1986), American Egyptologist
- Elizabeth Marshall Thomas (born 1931), American anthropologist and author
- Betty Thomas (born 1948), American actress
- Betsy Thomas, television writer
- Bess Thomas (1892–1968), Australian librarian