St John Harmsworth | |
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| Born | William Albert St John Harmsworth 19 May 1876 St John's Wood, London, England |
| Died | 4 May 1933 Vergèze, France |
| Nationality | English |
| Alma mater | Christ Church, Oxford |
| Known for | Transformed Perrier mineral water into a global brand |
| Board member of | Amalgamated Press |
| Parent(s) | Alfred Harmsworth Geraldine Mary Maffett |
| Relatives | Alfred Harmsworth, 1st Viscount Northcliffe Harold Harmsworth, 1st Viscount Rothermere Cecil Harmsworth, 1st Baron Harmsworth Sir Leicester Harmsworth, 1st Baronet Sir Hildebrand Harmsworth, 1st Baronet (all brothers) |
William Albert St John Harmsworth (May 19, 1876 – May 4, 1933) was an English businessman who bought and established the fledgling Perrier brand of sparkling mineral water in France, designed its distinctive bulbous green bottle, and made it a huge success in the British Empire.