Edmund Oswald Thiele (1874–1971), later known as Sir Edmund Oswald Teale KBE (he changed the spelling of his surname in 1917) was a prominent geologist from Doncaster, Victoria, Australia.
He began a Geological survey in the German colony of Tanganyika in 1908 but was obliged to return to Australia during the First World War.
During this time he found employment as a temporary Lecturer in geology at the University of Adelaide, replacing Sir Douglas Mawson who had left for Britain to help the war effort.
After the war Teale returned to East Africa as part of the geological survey until 1936.
Their son, Ronald Edmund Littlewood Teale, went on to become a missionary with his wife, who was also called, Margaret, in Papua New Guinea for 60 years.