John Munn (1807 – September 29, 1879) was a Scottish-born merchant and political figure in Newfoundland.
He represented Conception Bay from 1842 to 1848 and Harbour Grace from 1869 to 1873 in the Newfoundland and Labrador House of Assembly as a Conservative.
Mann was born at Port Bannatyne near Rothesay in Scotland, the son of Stewart Munn and Isabella Fisher, and came to St. John's in 1825.
He worked there as a bookkeeper until 1833, when he moved to Harbour Grace and opened a business with Captain William Punton.
In 2016, John Munn was named a National Historic Person.