Ralph Warren Johnstone (May 5, 1914 – August 25, 2010) was a Canadian politician and farmer.
He represented 1st Queens in the Legislative Assembly of Prince Edward Island from 1970 to 1979 as a Liberal.
[1] Johnstone was born in 1914 in Long River, Prince Edward Island.
[1] A farmer by career, Johnstone operated two farms and was an active member of the Federation of Agriculture.
[4] Johnstone was defeated by Progressive Conservative Leone Bagnall, when he ran for re-election in 1979.