Charles Adams Mosher (May 7, 1906 – November 16, 1984) was an American newspaperman and politician who served eight terms as a Republican member of the United States House of Representatives from Ohio from 1961 to 1977.

He was a delegate to the White House Conference on Education in 1955, director of the Oberlin Improvement and Development Corporation and a member of Presidential Commission on Marine Science, Engineering and Resources, 1967-1969.

The report dealt with the long term implications for American Society of Space Exploration.

Mosher voted in favor of the Civil Rights Act of 1964, the Voting Rights Act of 1965, the Medicare program for the elderly, the Civil Rights Act of 1968, and alongside fellow Republicans Seymour Halpern, F. Bradford Morse and Ogden Reid, co-sponsored the Health Security Act of 1971, a bipartisan bill that advocated the creation of a government health program that would have covered every person in America.

He was the executive director of the House Science and Technology Committee in Washington, D.C., September 1977 – 1979.