Topic summary
John Pizer

Letters and clues
Investigators
Doctors and coroners
- Montague Druitt
- Jacob Isenschmid
- George Chapman
- Aaron Kosminski
- Michael Ostrog
- John Pizer
- James Thomas Sadler
- Francis Tumblety
- William Henry Bury
- Thomas Neill Cream
- Thomas Hayne Cutbush
- Frederick Bailey Deeming
- Carl Feigenbaum
- Robert Donston Stephenson
- Prince Albert Victor, Duke of Clarence and Avondale
- Joseph Barnett
- Willy Clarkson
- William Gull
- George Hutchinson
- James Kelly
- Charles Allen Lechmere
- Jacob Levy
- James Maybrick
- Michael Maybrick
- Walter Sickert
- Joseph Silver
- James Kenneth Stephen
- Sir John Williams, 1st Baronet, of the City of London
- L. Forbes Winslow
- Mary Pearcey
John Pizer (21 September 1850 – 7 July 1897) was an English bootmaker in Whitechapel, London. He was the first person accused of being the perpetrator in the Whitechapel murders, but was cleared of suspicion after providing alibis for the two murders committed until that point. He was still called as a witness to the murder inquest of Annie Chapman.