Sir Edmund St. John Debonnaire John Monson, 3rd Baronet, K.C.M.G. (9 September 1883—1969) was a British diplomat.

Monson was the second son of Sir Edmund Monson, 1st Baronet

Sir Edmund Monson, 1st Baronet

Sir Edmund John Monson, 1st Baronet GCMG, PC was a British diplomat.-Background and education:Monson was born at Seal, Kent the third son of William John Monson, 6th Baron Monson...

 and succeeded his elder brother to the baronetcy

Monson Baronets

There have been two Baronetcies created for members of the Monson family, one in the Baronetage of England and one in the Baronetage of the United Kingdom. One creation is extant as of 2008....

 created in 1905 for his father (also a diplomat). He was educated at Eton College

Eton College

Eton College, often referred to simply as Eton, is a British independent school for boys aged 13 to 18. It was founded in 1440 by King Henry VI as "The King's College of Our Lady of Eton besides Wyndsor"....

He entered the British diplomatic service in 1906 and served in junior capacities in Constantinople

Constantinople

Constantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...

, Tokyo

Tokyo

, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

, Paris

Paris

Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

, and Tehran

Tehran

Tehran , sometimes spelled Teheran, is the capital of Iran and Tehran Province. With an estimated population of 8,429,807; it is also Iran's largest urban area and city, one of the largest cities in Western Asia, and is the world's 19th largest city.In the 20th century, Tehran was subject to...

. He was promoted to Embassy Counsellor in 1923. In 1926, he was appointed British Minister in Colombia. This was followed by the same post in Mexico from 1929 to 1934, and to the Baltic States from 1934 to 1937. He was Minster in Sweden from 1938 to 1939. He was appointed K.C.M.G. in 1938, two years after succeeding his brother to the baronetcy.