John S. Macdonald

John S. Macdonald may refer to:

• John Sandfield Macdonald, first Premier of Ontario
• Harry Macdonough (John Scantlebury Macdonald), Canadian singer and recording executive of the early 20th century
• John S. MacDonald, Canadian engineer and businessman
• John Smyth Macdonald (1867–1941), British physiologist

• John Macdonald (disambiguation)

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.