William James Chaplin (1787–1859) was a stage coach proprietor who developed a large coaching business before the arrival of the railways. He has been called "perhaps the greatest coach proprietor that ever lived". His great rival was Edward Sherman.
- Occupation
- businessperson, politician
- Position held
- member of the 16th Parliament of the United Kingdom, member of the 15th Parliament of the United Kingdom, member of the 14th Parliament of the United Kingdom, Sheriff of the City of London
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- 1787