William James Galbraith (1872 – December 21, 1956) was an American lawyer and Republican politician.

Galbraith was the third Attorney General of Arizona after it gained statehood.

[2] From 1909 to 1913 Galbraith lived in Tucson, taught law at the University of Arizona and was an assistant attorney general.

[3][4] He later moved to Maricopa County and served as a member of the Fourth Legislature of Arizona and was a member of the Uniform Law Commission of Arizona for two terms.

[2] In 1924, he was the Republican nominee for Arizona's only congressional district,[2] but lost to Democrat Carl Hayden.