Blyth may refer to:
People
Places
Australia
- Blyth, South Australia, a small town
Canada
- Blyth, Ontario, a village
United Kingdom
- Blyth, Northumberland, a town
- Blyth (UK Parliament constituency), a former constituency
- Blyth, Nottinghamshire, a village
- Blyth Rural District, a former district of East Suffolk
Other uses
- Baron Blyth, title in the UK peerage
- Blyth, Inc., a personal goods manufacturing and distribution company
- The Blyth Academy, Blyth, Northumberland, England
- Blyth Education, a Canadian company that runs a chain of private secondary schools