| Office: | 7th Director General of the Foreign Service |
| Term Start: | November 17, 1958 |
| Term End: | January 31, 1961 |
| Preceded: | Joseph Charles Satterthwaite |
| Succeeded: | Tyler Thompson |
| Birth Date: | April 27, 1899 |
| Birth Place: | Wellsville, New York |
| Death Date: | June 28, 1980 |
| Education: | Cornell University |
Waldemar John Gallman (April 27, 1899 Wellsville, New York – June 28, 1980)[1] was an American Career Foreign Service Officer who served as Ambassador Extraordinary and Plenipotentiary to Poland (1948–1950), South Africa (1951–1954) (Commissioned to the Union of South Africa), Iraq (1954 – 1958; Reaccredited when Iraq became a republic; presented new credentials on September 22, 1958. Commissioned as Ambassador Extraordinary and Plenipotentiary to the Arab Union on July 10, 1958, but did not take oath of office under that appointment, the Arab Union having been dissolved) and was Director General of the Foreign Service from November 17, 1958, until January 31, 1961.[2]
Gallman graduated from Cornell University in 1921.[3]
He was later a member of the Faculty of the George Washington University and author of “Iraq Under General Nuri: My Recollection of Nuri Al-Said, 1954–1958.”[4]