John Pizer | |
|---|---|
 Undated self portrait of Pizer | |
| Born | John Pizer c. 1850 |
| Died | 7 July 1897 (aged 46–47) Whitechapel, London, England |
| Other names | John Piser |
| Occupation | Bootmaker |
| Known for | Suspect of Jack the Ripper |
John Pizer or Piser (c. 1850–7 July 1897) was a Polish Jew who worked as a bootmaker in Whitechapel.