Longest single English surname
- Who
- Featherstonehaugh
- When
- 01 January 0001
The longest single English surname is Featherstonehaugh (17 letters), variously pronounced Featherstonehaw or Festonhaw or Fessonhay or Freestonhugh or Feerstonhaw or Fanshaw.
In Scotland the surname Nin (feminine of Mac) Achinmacdholicachinskerray (29 letters) was recorded in an 18th-century parish register.