| William C. Gilbreath | |
| Office1: | 6th North Dakota Commissioner of Agriculture and Labor |
| Term Start1: | 1905 |
| Term End1: | 1914 |
| Predecessor1: | Rollin J. Turner |
| Successor1: | Robert F. Flint |
| Birth Date: | 9 September 1851 |
| Birth Place: | McMinn County, Tennessee, U.S. |
| Death Place: | Bismarck, North Dakota, U.S. |
William C. Gilbreath (September 9, 1851 – January 28, 1921), a.k.a. W.C. Gilbreath, was an American politician who served as the North Dakota Commissioner of Agriculture and Labor from 1905 to 1914. He was born in McMinn County, Tennessee, but his family relocated to Illinois, where he was educated in the public schools and in Wesleyan University.
He came to North Dakota and engaged in the newspaper business, and later served as deputy commissioner of insurance of the state before he was elected as Commissioner of Agriculture and Labor in 1904, as a Republican. He served in that capacity until 1914, and died in Bismarck in 1921 at the age of 69.[1] [2] [3]