1916 United States Senate election in Maine

The 1916 United States Senate election in Maine was held on September 11, 1916.

Incumbent Democratic Senator Charles F. Johnson ran for re-election to a second term in office, but was defeated by Republican Frederick Hale, the son of Johnson's predecessor Eugene Hale.

Candidates

 * Charles F. Johnson, incumbent Senator since 1911

Results
Senator Johnson was unopposed in the Democratic primary.

Candidates

 * Bert M. Fernald, former Governor of Maine (1909–11)
 * Frederick Hale, former State Representative from Portland (1905–06) and Republican National Committeeman
 * Ira Hersey, State Senator from Houlton and President of the Maine Senate

Results
Three days before the primary, Maine's other U.S. Senator Edwin C. Burleigh died. After losing this primary, Fernald ran to complete Burleigh's unexpired term and won.

Hersey ran for and won the election to Maine's 4th congressional district, which was vacated by Frank E. Guernsey, who also ran in the special election for Senate.

Candidates

 * James F. Carey, former Massachusetts State Representative from Haverhill (1900–04)

Candidates

 * George C. Webber