Ronald William Clark (1916-1987) was a British author of biography and non-fiction.

Clark wrote biographies of a diverse group of historical figures, including: Charles Darwin, Thomas Edison, Albert Einstein, Benjamin Franklin, Sigmund Freud, J.B.S. Haldane, V. I. Lenin, and Bertrand Russell. He also wrote about mountain climbing (over a dozen titles), the atomic bomb, and world explorers.

Selected Works

• The Day the Rope Broke: The Story of the First Ascent of the Matterhorn (1965)
• Einstein: The Life and Times (1972) ISBN 038001159X
• Edison: The Man Who Made The Future (1977) SBN 399-11952-3
• The Greatest Power on Earth : The Story of Nuclear Fission (1980) ISBN 0283987154
• Bertrand Russell and His World (1981) ISBN 0500130701
• Balmoral, Queen Victoria's Highland Home (1981) ISBN 0500250782
• The Survival of Charles Darwin (1984) ISBN 0380699915