- TwattA settlement in Birsay civil parish, Mainland, Orkney Islands council area, Scotland (OS grid ref HY270242).
- thwaiteA piece of forest land cleared for agriculture or habitation; a clearing.
- GarthwaiteA surname from Old Norse.
- HebblethwaiteA surname.
- LewthwaiteA surname from Old Norse.
- SwathwickA hamlet in Wingerworth parish, North East Derbyshire district, Derbyshire, England (OS grid ref SK3767).
- TvedtA surname from Norwegian.