- the English royal family that reigned 1399–1461, descended from John of Gaunt (Duke of Lancaster), and that included Henry IV, Henry V, and Henry VI.
- a member of this family.
- a city in Lancashire, in NW England.
- a city in SE Pennsylvania.
- a town in S California.
- a city in central Ohio.
- a town in N Texas.
- a town in W New York.
- Lancashire.
- a city in NW England, former county town of Lancashire, on the River Lune: castle (built on the site of a Roman camp); university (1964). Pop: 45 952 (2001)
- the English royal house that reigned from 1399 to 1461
