Lieutenant-Colonel John By was an English military engineer. He is best known for having supervised the construction of the Rideau Canal and for having founded Bytown in the process. It developed and was designated as the Canadian capital, Ottawa.
- Occupation
- civil engineer, engineer, military officer
- Citizenship
- United Kingdom of Great Britain and Ireland, Kingdom of Great Britain
- Born
- August 7, 1779, 1793
- Died
- February 1, 1836