Percy Carl Klaehn (1896 – May 8, 1984) was a Canadian educator, soldier, and politician who served as mayor of Saskatoon, Saskatchewan from 1963 to 1964.
Klaehn served with Princess Patricia's Canadian Light Infantry during the First World War and was wounded at the Battle of Vimy Ridge.
He was named commander of The Cameron Highlanders of Ottawa and took part in the Allied invasion of Normandy in June 1944.
In the fall of 1945, Klaehn returned to Saskatoon as regional administrator for the federal Department of Veterans Affairs.
[1] Between the First and Second World Wars, Klaehn also taught school in Saskatoon, North Battleford and Weyburn.