Thomas Clayton Davis (September 6, 1889 – January 21, 1960[1]) was a Canadian lawyer, judge, diplomat and political figure in Saskatchewan.

He was born in Prince Albert, Saskatchewan (then a district of the Northwest Territories), the son of Thomas Osborne Davis, and was educated there and at St. John's College and Osgoode Hall.

He helped convince William Lyon Mackenzie King to create Prince Albert National Park, which was opened in 1928.

Davis' judicial career ended in 1940 when he was named federal Deputy Minister of War Services;[1] however, he did not resign from the Court of Appeal until 1948.

[2] He was named Canadian High Commissioner to Australia in 1943 and went on to serve as ambassador to China, Japan and West Germany.