John McLennan (disambiguation) explained

John McLennan and similar may refer to:

People bearing the name-

• John McLennan (1821–1893), businessman and politician, Ontario, Canada
• John McLennan (1867–1935, a Canadian physicist

With a similar spelling:-

• John McLennon (1855–1888), a US Army musician
• John McLenan (1827–1865), an American illustrator